55631164 has 48 divisors (see below), whose sum is σ = 108662400. Its totient is φ = 24808896.

The previous prime is 55631161. The next prime is 55631167. The reversal of 55631164 is 46113655.

It is an interprime number because it is at equal distance from previous prime (55631161) and next prime (55631167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55631161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94479 + ... + 95065.

It is an arithmetic number, because the mean of its divisors is an integer number (2263800).

Almost surely, 2^55631164 is an apocalyptic number.

It is an amenable number.

55631164 is a deficient number, since it is larger than the sum of its proper divisors (53031236).

55631164 is a wasteful number, since it uses less digits than its factorization.

55631164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 55631164 is about 7458.6301691396. The cubic root of 55631164 is about 381.7444358432.

The spelling of 55631164 in words is "fifty-five million, six hundred thirty-one thousand, one hundred sixty-four".