55567992 has 32 divisors (see below), whose sum is σ = 139150080. Its totient is φ = 18492000.

The previous prime is 55567979. The next prime is 55568003. The reversal of 55567992 is 29976555.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16483 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (4348440).

Almost surely, 2^55567992 is an apocalyptic number.

It is an amenable number.

55567992 is an abundant number, since it is smaller than the sum of its proper divisors (83582088).

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

55567992 is a wasteful number, since it uses less digits than its factorization.

55567992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843 (or 3839 counting only the distinct ones).

The product of its digits is 850500, while the sum is 48.

The square root of 55567992 is about 7454.3941403712. The cubic root of 55567992 is about 381.5998844103.

The spelling of 55567992 in words is "fifty-five million, five hundred sixty-seven thousand, nine hundred ninety-two".