55697608 has 16 divisors (see below), whose sum is σ = 104737500. Its totient is φ = 27767616.

The previous prime is 55697581. The next prime is 55697657. The reversal of 55697608 is 80679655.

It can be written as a sum of positive squares in 2 ways, for example, as 55086084 + 611524 = 7422^2 + 782^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7183 + ... + 12766.

Almost surely, 2^55697608 is an apocalyptic number.

It is an amenable number.

55697608 is a deficient number, since it is larger than the sum of its proper divisors (49039892).

55697608 is a wasteful number, since it uses less digits than its factorization.

55697608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20304 (or 20300 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 55697608 is about 7463.0830090520. The cubic root of 55697608 is about 381.8963563014.

The spelling of 55697608 in words is "fifty-five million, six hundred ninety-seven thousand, six hundred eight".