55116580 has 12 divisors (see below), whose sum is σ = 115744860. Its totient is φ = 22046624.

The previous prime is 55116563. The next prime is 55116653. The reversal of 55116580 is 8561155.

It can be written as a sum of positive squares in 2 ways, for example, as 6340324 + 48776256 = 2518^2 + 6984^2 .

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, 1377895 + ... + 1377934.

It is an arithmetic number, because the mean of its divisors is an integer number (9645405).

Almost surely, 2^55116580 is an apocalyptic number.

It is an amenable number.

55116580 is an abundant number, since it is smaller than the sum of its proper divisors (60628280).

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

55116580 is a wasteful number, since it uses less digits than its factorization.

55116580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755838 (or 2755836 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 55116580 is about 7424.0541485094. The cubic root of 55116580 is about 380.5637523310.

It can be divided in two parts, 55116 and 580, that added together give a square (55696 = 236²).

The spelling of 55116580 in words is "fifty-five million, one hundred sixteen thousand, five hundred eighty".