55500812 has 12 divisors (see below), whose sum is σ = 97348776. Its totient is φ = 27686880.

The previous prime is 55500803. The next prime is 55500821. The reversal of 55500812 is 21800555.

It is an interprime number because it is at equal distance from previous prime (55500803) and next prime (55500821).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13889 + ... + 17432.

It is an arithmetic number, because the mean of its divisors is an integer number (8112398).

Almost surely, 2^55500812 is an apocalyptic number.

It is an amenable number.

55500812 is a deficient number, since it is larger than the sum of its proper divisors (41847964).

55500812 is a wasteful number, since it uses less digits than its factorization.

55500812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31768 (or 31766 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 55500812 is about 7449.8867105480. The cubic root of 55500812 is about 381.4460415399.

The spelling of 55500812 in words is "fifty-five million, five hundred thousand, eight hundred twelve".