97655625 has 60 divisors (see below), whose sum is σ = 183078896. Its totient is φ = 52002000.

The previous prime is 97655603. The next prime is 97655629. The reversal of 97655625 is 52655679.

97655625 is a `hidden beast` number, since 9 + 76 + 556 + 25 = 666.

It is not a de Polignac number, because 97655625 - 2¹⁶ = 97590089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97655629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 151554 + ... + 152196.

Almost surely, 2^97655625 is an apocalyptic number.

It is an amenable number.

97655625 is a deficient number, since it is larger than the sum of its proper divisors (85423271).

97655625 is an frugal number, since it uses more digits than its factorization.

97655625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 651 counting only the distinct ones).

The product of its digits is 567000, while the sum is 45.

The square root of 97655625 is about 9882.0860651990. The cubic root of 97655625 is about 460.5029549196.

The spelling of 97655625 in words is "ninety-seven million, six hundred fifty-five thousand, six hundred twenty-five".