55776260 has 12 divisors (see below), whose sum is σ = 117130188. Its totient is φ = 22310496.

The previous prime is 55776247. The next prime is 55776271. The reversal of 55776260 is 6267755.

It can be written as a sum of positive squares in 2 ways, for example, as 39967684 + 15808576 = 6322^2 + 3976^2 .

It is a super-2 number, since 2×55776260² = 6221982359175200, which contains 22 as substring.

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, 1394387 + ... + 1394426.

It is an arithmetic number, because the mean of its divisors is an integer number (9760849).

Almost surely, 2^55776260 is an apocalyptic number.

It is an amenable number.

55776260 is an abundant number, since it is smaller than the sum of its proper divisors (61353928).

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

55776260 is a wasteful number, since it uses less digits than its factorization.

55776260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788822 (or 2788820 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 55776260 is about 7468.3505541719. The cubic root of 55776260 is about 382.0760335846.

The spelling of 55776260 in words is "fifty-five million, seven hundred seventy-six thousand, two hundred sixty".