55655340 has 48 divisors (see below), whose sum is σ = 167824608. Its totient is φ = 13699584.

The previous prime is 55655317. The next prime is 55655357. The reversal of 55655340 is 4355655.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34897 + ... + 36456.

It is an arithmetic number, because the mean of its divisors is an integer number (3496346).

Almost surely, 2^55655340 is an apocalyptic number.

It is an amenable number.

55655340 is an abundant number, since it is smaller than the sum of its proper divisors (112169268).

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

55655340 is a wasteful number, since it uses less digits than its factorization.

55655340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71378 (or 71376 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 55655340 is about 7460.2506660299. The cubic root of 55655340 is about 381.7997268961.

The spelling of 55655340 in words is "fifty-five million, six hundred fifty-five thousand, three hundred forty".