55238560 has 48 divisors (see below), whose sum is σ = 140544936. Its totient is φ = 20395008.

The previous prime is 55238539. The next prime is 55238569. The reversal of 55238560 is 6583255.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33223696 + 22014864 = 5764^2 + 4692^2 .

It is not an unprimeable number, because it can be changed into a prime (55238569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11199 + ... + 15358.

Almost surely, 2^55238560 is an apocalyptic number.

It is an amenable number.

55238560 is an abundant number, since it is smaller than the sum of its proper divisors (85306376).

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

55238560 is a wasteful number, since it uses less digits than its factorization.

55238560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26585 (or 26577 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 55238560 is about 7432.2647961439. The cubic root of 55238560 is about 380.8442908020.

The spelling of 55238560 in words is "fifty-five million, two hundred thirty-eight thousand, five hundred sixty".