55493944 has 16 divisors (see below), whose sum is σ = 113510520. Its totient is φ = 25224480.

The previous prime is 55493941. The next prime is 55493947. The reversal of 55493944 is 44939455.

55493944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55493941) and next prime (55493947).

It is a self number, because there is not a number n which added to its sum of digits gives 55493944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55493941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315219 + ... + 315394.

Almost surely, 2^55493944 is an apocalyptic number.

It is an amenable number.

55493944 is an abundant number, since it is smaller than the sum of its proper divisors (58016576).

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

55493944 is a wasteful number, since it uses less digits than its factorization.

55493944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630630 (or 630626 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 55493944 is about 7449.4257496803. The cubic root of 55493944 is about 381.4303067582.

The spelling of 55493944 in words is "fifty-five million, four hundred ninety-three thousand, nine hundred forty-four".