87003996525 has 72 divisors (see below), whose sum is σ = 158997311616. Its totient is φ = 45466012800.

The previous prime is 87003996503. The next prime is 87003996593. The reversal of 87003996525 is 52569930078.

87003996525 is a `hidden beast` number, since 87 + 0 + 0 + 39 + 9 + 6 + 525 = 666.

It is not a de Polignac number, because 87003996525 - 2⁵ = 87003996493 is a prime.

It is a super-2 number, since 2×87003996525² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3597624 + ... + 3621726.

Almost surely, 2^87003996525 is an apocalyptic number.

It is an amenable number.

87003996525 is a deficient number, since it is larger than the sum of its proper divisors (71993315091).

87003996525 is a wasteful number, since it uses less digits than its factorization.

87003996525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24443 (or 24435 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 87003996525 in words is "eighty-seven billion, three million, nine hundred ninety-six thousand, five hundred twenty-five".