55319444 has 12 divisors (see below), whose sum is σ = 96885600. Its totient is φ = 27637848.

The previous prime is 55319441. The next prime is 55319449. The reversal of 55319444 is 44491355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55319441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097 + ... + 10575.

It is an arithmetic number, because the mean of its divisors is an integer number (8073800).

Almost surely, 2^55319444 is an apocalyptic number.

It is an amenable number.

55319444 is a deficient number, since it is larger than the sum of its proper divisors (41566156).

55319444 is a wasteful number, since it uses less digits than its factorization.

55319444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10942 (or 10940 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The square root of 55319444 is about 7437.7042156838. The cubic root of 55319444 is about 381.0300860547.

The spelling of 55319444 in words is "fifty-five million, three hundred nineteen thousand, four hundred forty-four".