55978596 has 36 divisors (see below), whose sum is σ = 147655872. Its totient is φ = 17847984.

The previous prime is 55978577. The next prime is 55978627. The reversal of 55978596 is 69587955.

It is a happy number.

55978596 is a `hidden beast` number, since 559 + 7 + 85 + 9 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32976 + ... + 34631.

It is an arithmetic number, because the mean of its divisors is an integer number (4101552).

Almost surely, 2^55978596 is an apocalyptic number.

It is an amenable number.

55978596 is an abundant number, since it is smaller than the sum of its proper divisors (91677276).

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

55978596 is a wasteful number, since it uses less digits than its factorization.

55978596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67640 (or 67635 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 54.

The square root of 55978596 is about 7481.8845219637. The cubic root of 55978596 is about 382.5374870347.

The spelling of 55978596 in words is "fifty-five million, nine hundred seventy-eight thousand, five hundred ninety-six".