99524715925 has 6 divisors (see below), whose sum is σ = 123410647778. Its totient is φ = 79619772720.

The previous prime is 99524715893. The next prime is 99524715947. The reversal of 99524715925 is 52951742599.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2872745604 + 96651970321 = 53598^2 + 310889^2 .

It is not a de Polignac number, because 99524715925 - 2⁵ = 99524715893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99524715925.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1990494294 + ... + 1990494343.

Almost surely, 2^99524715925 is an apocalyptic number.

It is an amenable number.

99524715925 is a deficient number, since it is larger than the sum of its proper divisors (23885931853).

99524715925 is a wasteful number, since it uses less digits than its factorization.

99524715925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980988647 (or 3980988642 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 58.

The spelling of 99524715925 in words is "ninety-nine billion, five hundred twenty-four million, seven hundred fifteen thousand, nine hundred twenty-five".