55575992 has 32 divisors (see below), whose sum is σ = 113037120. Its totient is φ = 25512960.

The previous prime is 55575979. The next prime is 55575997. The reversal of 55575992 is 29957555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55575997) 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, 593 + ... + 10559.

It is an arithmetic number, because the mean of its divisors is an integer number (3532410).

Almost surely, 2^55575992 is an apocalyptic number.

It is an amenable number.

55575992 is an abundant number, since it is smaller than the sum of its proper divisors (57461128).

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

55575992 is a wasteful number, since it uses less digits than its factorization.

55575992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031 (or 10027 counting only the distinct ones).

The product of its digits is 708750, while the sum is 47.

The square root of 55575992 is about 7454.9307173172. The cubic root of 55575992 is about 381.6181962266.

The spelling of 55575992 in words is "fifty-five million, five hundred seventy-five thousand, nine hundred ninety-two".