79297605525 has 24 divisors (see below), whose sum is σ = 135334584064. Its totient is φ = 40927795200.

The previous prime is 79297605521. The next prime is 79297605547. The reversal of 79297605525 is 52550679297.

It is a happy number.

It is not a de Polignac number, because 79297605525 - 2² = 79297605521 is a prime.

It is a super-2 number, since 2×79297605525² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79297605521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17050924 + ... + 17055573.

Almost surely, 2^79297605525 is an apocalyptic number.

79297605525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79297605525 is a deficient number, since it is larger than the sum of its proper divisors (56036978539).

79297605525 is a wasteful number, since it uses less digits than its factorization.

79297605525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34106541 (or 34106536 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 57.

The spelling of 79297605525 in words is "seventy-nine billion, two hundred ninety-seven million, six hundred five thousand, five hundred twenty-five".