55244660 has 12 divisors (see below), whose sum is σ = 116013828. Its totient is φ = 22097856.

The previous prime is 55244659. The next prime is 55244687. The reversal of 55244660 is 6644255.

It can be written as a sum of positive squares in 2 ways, for example, as 16032016 + 39212644 = 4004^2 + 6262^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381097 + ... + 1381136.

It is an arithmetic number, because the mean of its divisors is an integer number (9667819).

Almost surely, 2^55244660 is an apocalyptic number.

It is an amenable number.

55244660 is an abundant number, since it is smaller than the sum of its proper divisors (60769168).

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

55244660 is a wasteful number, since it uses less digits than its factorization.

55244660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762242 (or 2762240 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 55244660 is about 7432.6751577074. The cubic root of 55244660 is about 380.8583091777.

The spelling of 55244660 in words is "fifty-five million, two hundred forty-four thousand, six hundred sixty".