55088940 has 24 divisors (see below), whose sum is σ = 154249200. Its totient is φ = 14690368.

The previous prime is 55088899. The next prime is 55088983. The reversal of 55088940 is 4988055.

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, 459015 + ... + 459134.

It is an arithmetic number, because the mean of its divisors is an integer number (6427050).

Almost surely, 2^55088940 is an apocalyptic number.

It is an amenable number.

55088940 is an abundant number, since it is smaller than the sum of its proper divisors (99160260).

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

55088940 is a wasteful number, since it uses less digits than its factorization.

55088940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918161 (or 918159 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 55088940 is about 7422.1923984763. The cubic root of 55088940 is about 380.5001263409.

The spelling of 55088940 in words is "fifty-five million, eighty-eight thousand, nine hundred forty".