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52485531 = 372499311
BaseRepresentation
bin1100100000110…
…1110110011011
310122202112121120
43020031312123
5101414014111
65112540323
71205056020
oct310156633
9118675546
1052485531
112769917a
12156b16a3
13ab48837
146d83547
15491b406
hex320dd9b

52485531 has 8 divisors (see below), whose sum is σ = 79977984. Its totient is φ = 29991720.

The previous prime is 52485527. The next prime is 52485557. The reversal of 52485531 is 13558425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52485531 - 22 = 52485527 is a prime.

It is a super-2 number, since 2×524855312 = 5509461928703922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52485492 and 52485501.

It is not an unprimeable number, because it can be changed into a prime (52485031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249635 + ... + 1249676.

It is an arithmetic number, because the mean of its divisors is an integer number (9997248).

Almost surely, 252485531 is an apocalyptic number.

52485531 is a deficient number, since it is larger than the sum of its proper divisors (27492453).

52485531 is a wasteful number, since it uses less digits than its factorization.

52485531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499321.

The product of its digits is 24000, while the sum is 33.

The square root of 52485531 is about 7244.6898484338. The cubic root of 52485531 is about 374.4092173132.

The spelling of 52485531 in words is "fifty-two million, four hundred eighty-five thousand, five hundred thirty-one".

Divisors: 1 3 7 21 2499311 7497933 17495177 52485531