88538978025 has 81 divisors (see below), whose sum is σ = 161191235959. Its totient is φ = 46456667040.

The previous prime is 88538977999. The next prime is 88538978053. The reversal of 88538978025 is 52087983588.

The square root of 88538978025 is 297555.

It is a perfect power (a square), and thus also a powerful number.

88538978025 is a `hidden beast` number, since 8 + 8 + 538 + 9 + 78 + 0 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31874032089 + 56664945936 = 178533^2 + 238044^2 .

It is not a de Polignac number, because 88538978025 - 2¹¹ = 88538975977 is a prime.

It is a super-2 number, since 2×88538978025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 370455856 + ... + 370456094.

Almost surely, 2^88538978025 is an apocalyptic number.

88538978025 is the 297555-th square number.

88538978025 is the 148778-th centered octagonal number.

It is an amenable number.

88538978025 is a deficient number, since it is larger than the sum of its proper divisors (72652257934).

88538978025 is an equidigital number, since it uses as much as digits as its factorization.

88538978025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 63.

The spelling of 88538978025 in words is "eighty-eight billion, five hundred thirty-eight million, nine hundred seventy-eight thousand, twenty-five".