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525123314231 = 4711172836473
BaseRepresentation
bin1111010010000111100…
…10011110001000110111
31212012102202011022101012
413221003302132020313
532100423032023411
61041123251022435
752640021344415
oct7510362361067
91765382138335
10525123314231
1119278146a30a
128593289aa1b
133a69909b899
141b5b7b0a2b5
15d9d656318b
hex7a43c9e237

525123314231 has 4 divisors (see below), whose sum is σ = 536296150752. Its totient is φ = 513950477712.

The previous prime is 525123314167. The next prime is 525123314237. The reversal of 525123314231 is 132413321525.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 525123314231 - 26 = 525123314167 is a prime.

It is a super-2 number, since 2×5251233142312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525123314237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5586418190 + ... + 5586418283.

It is an arithmetic number, because the mean of its divisors is an integer number (134074037688).

Almost surely, 2525123314231 is an apocalyptic number.

525123314231 is a deficient number, since it is larger than the sum of its proper divisors (11172836521).

525123314231 is a wasteful number, since it uses less digits than its factorization.

525123314231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11172836520.

The product of its digits is 21600, while the sum is 32.

Adding to 525123314231 its reverse (132413321525), we get a palindrome (657536635756).

The spelling of 525123314231 in words is "five hundred twenty-five billion, one hundred twenty-three million, three hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 47 11172836473 525123314231