55033872 has 20 divisors (see below), whose sum is σ = 142170960. Its totient is φ = 18344608.

The previous prime is 55033841. The next prime is 55033873. The reversal of 55033872 is 27833055.

It is not an unprimeable number, because it can be changed into a prime (55033873) 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, 573222 + ... + 573317.

It is an arithmetic number, because the mean of its divisors is an integer number (7108548).

Almost surely, 2^55033872 is an apocalyptic number.

It is an amenable number.

55033872 is an abundant number, since it is smaller than the sum of its proper divisors (87137088).

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

55033872 is a wasteful number, since it uses less digits than its factorization.

55033872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146550 (or 1146544 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 55033872 is about 7418.4817853790. The cubic root of 55033872 is about 380.3732989072.

The spelling of 55033872 in words is "fifty-five million, thirty-three thousand, eight hundred seventy-two".