97665552 has 60 divisors (see below), whose sum is σ = 274123824. Its totient is φ = 32460480.

The previous prime is 97665551. The next prime is 97665563. The reversal of 97665552 is 25556679.

97665552 is a `hidden beast` number, since 97 + 6 + 6 + 5 + 552 = 666.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 97665498 and 97665507.

It is not an unprimeable number, because it can be changed into a prime (97665551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63027 + ... + 64557.

Almost surely, 2^97665552 is an apocalyptic number.

It is an amenable number.

97665552 is an abundant number, since it is smaller than the sum of its proper divisors (176458272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97665552 is a wasteful number, since it uses less digits than its factorization.

97665552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1979 counting only the distinct ones).

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

The square root of 97665552 is about 9882.5883249278. The cubic root of 97665552 is about 460.5185582465.

The spelling of 97665552 in words is "ninety-seven million, six hundred sixty-five thousand, five hundred fifty-two".