55726444 has 12 divisors (see below), whose sum is σ = 99174600. Its totient is φ = 27390848.

The previous prime is 55726427. The next prime is 55726469. The reversal of 55726444 is 44462755.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117829 + ... + 118300.

It is an arithmetic number, because the mean of its divisors is an integer number (8264550).

Almost surely, 2^55726444 is an apocalyptic number.

It is an amenable number.

55726444 is a deficient number, since it is larger than the sum of its proper divisors (43448156).

55726444 is a wasteful number, since it uses less digits than its factorization.

55726444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236192 (or 236190 counting only the distinct ones).

The product of its digits is 134400, while the sum is 37.

The square root of 55726444 is about 7465.0146684384. The cubic root of 55726444 is about 381.9622505939.

It can be divided in two parts, 5 and 5726444, that added together give a square (5726449 = 2393²).

The spelling of 55726444 in words is "fifty-five million, seven hundred twenty-six thousand, four hundred forty-four".