55665148 has 24 divisors (see below), whose sum is σ = 121451904. Its totient is φ = 21687600.

The previous prime is 55665109. The next prime is 55665163. The reversal of 55665148 is 84156655.

It is a self number, because there is not a number n which added to its sum of digits gives 55665148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90058 + ... + 90673.

It is an arithmetic number, because the mean of its divisors is an integer number (5060496).

Almost surely, 2^55665148 is an apocalyptic number.

It is an amenable number.

55665148 is an abundant number, since it is smaller than the sum of its proper divisors (65786756).

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

55665148 is a wasteful number, since it uses less digits than its factorization.

55665148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180753 (or 180751 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 55665148 is about 7460.9079876380. The cubic root of 55665148 is about 381.8221534459.

The spelling of 55665148 in words is "fifty-five million, six hundred sixty-five thousand, one hundred forty-eight".