55310872 has 8 divisors (see below), whose sum is σ = 103707900. Its totient is φ = 27655432.

The previous prime is 55310867. The next prime is 55310891. The reversal of 55310872 is 27801355.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×55310872² = 6118585122800768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3456922 + ... + 3456937.

Almost surely, 2^55310872 is an apocalyptic number.

It is an amenable number.

55310872 is a deficient number, since it is larger than the sum of its proper divisors (48397028).

55310872 is a wasteful number, since it uses less digits than its factorization.

55310872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913865 (or 6913861 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 55310872 is about 7437.1279402737. The cubic root of 55310872 is about 381.0104042552.

The spelling of 55310872 in words is "fifty-five million, three hundred ten thousand, eight hundred seventy-two".