55391802 has 16 divisors (see below), whose sum is σ = 116614560. Its totient is φ = 17492112.

The previous prime is 55391773. The next prime is 55391851. The reversal of 55391802 is 20819355.

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, 242833 + ... + 243060.

It is an arithmetic number, because the mean of its divisors is an integer number (7288410).

Almost surely, 2^55391802 is an apocalyptic number.

55391802 is an abundant number, since it is smaller than the sum of its proper divisors (61222758).

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

55391802 is a wasteful number, since it uses less digits than its factorization.

55391802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485917.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 55391802 is about 7442.5668959036. The cubic root of 55391802 is about 381.1961431762.

The spelling of 55391802 in words is "fifty-five million, three hundred ninety-one thousand, eight hundred two".