55540492 has 24 divisors (see below), whose sum is σ = 115911936. Its totient is φ = 22767888.

The previous prime is 55540487. The next prime is 55540519. The reversal of 55540492 is 29404555.

It is a happy 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, 42478 + ... + 43765.

It is an arithmetic number, because the mean of its divisors is an integer number (4829664).

Almost surely, 2^55540492 is an apocalyptic number.

It is an amenable number.

55540492 is an abundant number, since it is smaller than the sum of its proper divisors (60371444).

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

55540492 is a wasteful number, since it uses less digits than its factorization.

55540492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86277 (or 86275 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 55540492 is about 7452.5493624665. The cubic root of 55540492 is about 381.5369241338.

The spelling of 55540492 in words is "fifty-five million, five hundred forty thousand, four hundred ninety-two".