55475312 has 20 divisors (see below), whose sum is σ = 109513080. Its totient is φ = 27213888.

The previous prime is 55475311. The next prime is 55475323. The reversal of 55475312 is 21357455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55475311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31862 + ... + 33557.

It is an arithmetic number, because the mean of its divisors is an integer number (5475654).

Almost surely, 2^55475312 is an apocalyptic number.

It is an amenable number.

55475312 is a deficient number, since it is larger than the sum of its proper divisors (54037768).

55475312 is a wasteful number, since it uses less digits than its factorization.

55475312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65480 (or 65474 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 55475312 is about 7448.1750785008. The cubic root of 55475312 is about 381.3876137814.

The spelling of 55475312 in words is "fifty-five million, four hundred seventy-five thousand, three hundred twelve".