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7656372010225 = 52232240612
BaseRepresentation
bin110111101101010001101…
…0101010111110011110001
31000002221102201200212021001
41233122203111113303301
52000420222213311400
624141142211402001
71420104015204241
oct157324325276361
930087381625231
107656372010225
11249205a442544
12a37a335b3301
13436cba1b2bb3
141c67db1b5b21
15d425e52ea6a
hex6f6a3557cf1

7656372010225 has 27 divisors (see below), whose sum is σ = 9925038987969. Its totient is φ = 5858545519200.

The previous prime is 7656372010223. The next prime is 7656372010241. The reversal of 7656372010225 is 5220102736567.

The square root of 7656372010225 is 2767015.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2202615142641 + 5453756867584 = 1484121^2 + 2335328^2 .

It is not a de Polignac number, because 7656372010225 - 21 = 7656372010223 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7656372010223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 318194695 + ... + 318218755.

Almost surely, 27656372010225 is an apocalyptic number.

7656372010225 is the 2767015-th square number.

7656372010225 is the 1383508-th centered octagonal number.

It is an amenable number.

7656372010225 is a deficient number, since it is larger than the sum of its proper divisors (2268666977744).

7656372010225 is an frugal number, since it uses more digits than its factorization.

7656372010225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48178 (or 24089 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 7656372010225 in words is "seven trillion, six hundred fifty-six billion, three hundred seventy-two million, ten thousand, two hundred twenty-five".

Divisors: 1 5 23 25 115 529 575 2645 13225 24061 120305 553403 601525 2767015 12728269 13835075 63641345 318206725 578931721 2894658605 13315429583 14473293025 66577147915 306254880409 332885739575 1531274402045 7656372010225