55211072 has 28 divisors (see below), whose sum is σ = 125211840. Its totient is φ = 23661696.

The previous prime is 55211069. The next prime is 55211089. The reversal of 55211072 is 27011255.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

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, 61172 + ... + 62067.

Almost surely, 2^55211072 is an apocalyptic number.

It is an amenable number.

55211072 is an abundant number, since it is smaller than the sum of its proper divisors (70000768).

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

55211072 is a wasteful number, since it uses less digits than its factorization.

55211072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123258 (or 123248 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 55211072 is about 7430.4153315949. The cubic root of 55211072 is about 380.7811079769.

The spelling of 55211072 in words is "fifty-five million, two hundred eleven thousand, seventy-two".