55451902 has 16 divisors (see below), whose sum is σ = 90874224. Its totient is φ = 25168000.

The previous prime is 55451843. The next prime is 55451911. The reversal of 55451902 is 20915455.

It is a congruent 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, 17952 + ... + 20812.

It is an arithmetic number, because the mean of its divisors is an integer number (5679639).

Almost surely, 2^55451902 is an apocalyptic number.

55451902 is a deficient number, since it is larger than the sum of its proper divisors (35422322).

55451902 is a wasteful number, since it uses less digits than its factorization.

55451902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 55451902 is about 7446.6033867798. The cubic root of 55451902 is about 381.3339590421. Note that the first 3 decimals are identical.

It can be divided in two parts, 5545 and 1902, that added together give a palindrome (7447).

The spelling of 55451902 in words is "fifty-five million, four hundred fifty-one thousand, nine hundred two".