55978832 has 40 divisors (see below), whose sum is σ = 133491456. Its totient is φ = 22144896.

The previous prime is 55978829. The next prime is 55978837. The reversal of 55978832 is 23887955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55978837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17768 + ... + 20679.

Almost surely, 2^55978832 is an apocalyptic number.

55978832 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

55978832 is an abundant number, since it is smaller than the sum of its proper divisors (77512624).

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

55978832 is a wasteful number, since it uses less digits than its factorization.

55978832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38475 (or 38469 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The square root of 55978832 is about 7481.9002933747. The cubic root of 55978832 is about 382.5380246135.

The spelling of 55978832 in words is "fifty-five million, nine hundred seventy-eight thousand, eight hundred thirty-two".