55939072 has 52 divisors (see below), whose sum is σ = 127910656. Its totient is φ = 23961600.

The previous prime is 55939067. The next prime is 55939109. The reversal of 55939072 is 27093955.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27697 + ... + 29647.

Almost surely, 2^55939072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55939072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63955328).

55939072 is an abundant number, since it is smaller than the sum of its proper divisors (71971584).

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

55939072 is an equidigital number, since it uses as much as digits as its factorization.

55939072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 55939072 is about 7479.2427424172. The cubic root of 55939072 is about 382.4474349285.

The spelling of 55939072 in words is "fifty-five million, nine hundred thirty-nine thousand, seventy-two".