87938537252 has 24 divisors (see below), whose sum is σ = 160620381432. Its totient is φ = 42087468800.

The previous prime is 87938537213. The next prime is 87938537257. The reversal of 87938537252 is 25273583978.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8327657536 + 79610879716 = 91256^2 + 282154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 87938537191 and 87938537200.

It is not an unprimeable number, because it can be changed into a prime (87938537257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5049899 + ... + 5067282.

It is an arithmetic number, because the mean of its divisors is an integer number (6692515893).

Almost surely, 2^87938537252 is an apocalyptic number.

87938537252 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87938537252 is a deficient number, since it is larger than the sum of its proper divisors (72681844180).

87938537252 is a wasteful number, since it uses less digits than its factorization.

87938537252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10117279 (or 10117277 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 59.

The spelling of 87938537252 in words is "eighty-seven billion, nine hundred thirty-eight million, five hundred thirty-seven thousand, two hundred fifty-two".