99124525525 has 48 divisors (see below), whose sum is σ = 125643513856. Its totient is φ = 77563422720.

The previous prime is 99124525501. The next prime is 99124525589. The reversal of 99124525525 is 52552542199.

It is a happy number.

It is not a de Polignac number, because 99124525525 - 2³¹ = 96977041877 is a prime.

It is a Duffinian number.

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 47 ways as a sum of consecutive naturals, for example, 113026387 + ... + 113027263.

Almost surely, 2^99124525525 is an apocalyptic number.

It is an amenable number.

99124525525 is a deficient number, since it is larger than the sum of its proper divisors (26518988331).

99124525525 is a wasteful number, since it uses less digits than its factorization.

99124525525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478 (or 1473 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 49.

The spelling of 99124525525 in words is "ninety-nine billion, one hundred twenty-four million, five hundred twenty-five thousand, five hundred twenty-five".