55744872 has 32 divisors (see below), whose sum is σ = 140467200. Its totient is φ = 18434304.

The previous prime is 55744861. The next prime is 55744877. The reversal of 55744872 is 27844755.

It is not an unprimeable number, because it can be changed into a prime (55744877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6097 + ... + 12192.

It is an arithmetic number, because the mean of its divisors is an integer number (4389600).

Almost surely, 2^55744872 is an apocalyptic number.

It is an amenable number.

55744872 is an abundant number, since it is smaller than the sum of its proper divisors (84722328).

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

55744872 is a wasteful number, since it uses less digits than its factorization.

55744872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425 (or 18421 counting only the distinct ones).

The product of its digits is 313600, while the sum is 42.

The square root of 55744872 is about 7466.2488573580. The cubic root of 55744872 is about 382.0043492465.

It can be divided in two parts, 55744 and 872, that added together give a triangular number (56616 = T₃₃₆).

The spelling of 55744872 in words is "fifty-five million, seven hundred forty-four thousand, eight hundred seventy-two".