55325072 has 90 divisors (see below), whose sum is σ = 127870722. Its totient is φ = 23091200.

The previous prime is 55325033. The next prime is 55325087. The reversal of 55325072 is 27052355.

It can be written as a sum of positive squares in 3 ways, for example, as 30976 + 55294096 = 176^2 + 7436^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1349372 + ... + 1349412.

Almost surely, 2^55325072 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 55325072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63935361).

55325072 is an abundant number, since it is smaller than the sum of its proper divisors (72545650).

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

55325072 is a wasteful number, since it uses less digits than its factorization.

55325072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 55325072 is about 7438.0825486143. The cubic root of 55325072 is about 381.0430071571.

The spelling of 55325072 in words is "fifty-five million, three hundred twenty-five thousand, seventy-two".