88315210521 has 20 divisors (see below), whose sum is σ = 131985622912. Its totient is φ = 58850939448.

The previous prime is 88315210507. The next prime is 88315210541. The reversal of 88315210521 is 12501251388.

88315210521 is a `hidden beast` number, since 8 + 83 + 1 + 52 + 1 + 0 + 521 = 666.

It is not a de Polignac number, because 88315210521 - 2¹⁴ = 88315194137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88315210541) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53125 + ... + 423618.

Almost surely, 2^88315210521 is an apocalyptic number.

88315210521 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

88315210521 is a deficient number, since it is larger than the sum of its proper divisors (43670412391).

88315210521 is a wasteful number, since it uses less digits than its factorization.

88315210521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479042 (or 479033 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The spelling of 88315210521 in words is "eighty-eight billion, three hundred fifteen million, two hundred ten thousand, five hundred twenty-one".