99887525 has 12 divisors (see below), whose sum is σ = 124245024. Its totient is φ = 79662000.

The previous prime is 99887507. The next prime is 99887527. The reversal of 99887525 is 52578899.

It is not a de Polignac number, because 99887525 - 2⁸ = 99887269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99887527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2240 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (10353752).

Almost surely, 2^99887525 is an apocalyptic number.

It is an amenable number.

99887525 is a deficient number, since it is larger than the sum of its proper divisors (24357499).

99887525 is a wasteful number, since it uses less digits than its factorization.

99887525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12412 (or 12407 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 53.

The square root of 99887525 is about 9994.3746677819. The cubic root of 99887525 is about 463.9847971758.

The spelling of 99887525 in words is "ninety-nine million, eight hundred eighty-seven thousand, five hundred twenty-five".