55972844 has 12 divisors (see below), whose sum is σ = 98364000. Its totient is φ = 27868848.

The previous prime is 55972811. The next prime is 55972849. The reversal of 55972844 is 44827955.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55972795 and 55972804.

It is not an unprimeable number, because it can be changed into a prime (55972849) 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, 28319 + ... + 30230.

It is an arithmetic number, because the mean of its divisors is an integer number (8197000).

Almost surely, 2^55972844 is an apocalyptic number.

It is an amenable number.

55972844 is a deficient number, since it is larger than the sum of its proper divisors (42391156).

55972844 is a wasteful number, since it uses less digits than its factorization.

55972844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58792 (or 58790 counting only the distinct ones).

The product of its digits is 403200, while the sum is 44.

The square root of 55972844 is about 7481.5001169552. The cubic root of 55972844 is about 382.5243842230.

The spelling of 55972844 in words is "fifty-five million, nine hundred seventy-two thousand, eight hundred forty-four".