55776200 has 24 divisors (see below), whose sum is σ = 129680130. Its totient is φ = 22310400.

The previous prime is 55776199. The next prime is 55776247. The reversal of 55776200 is 267755.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 43059844 + 12716356 = 6562^2 + 3566^2 .

It is a super-2 number, since 2×55776200² = 6221968972880000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139241 + ... + 139640.

Almost surely, 2^55776200 is an apocalyptic number.

55776200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55776200 is an abundant number, since it is smaller than the sum of its proper divisors (73903930).

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

55776200 is a wasteful number, since it uses less digits than its factorization.

55776200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278897 (or 278888 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 55776200 is about 7468.3465372196. The cubic root of 55776200 is about 382.0758965815.

The spelling of 55776200 in words is "fifty-five million, seven hundred seventy-six thousand, two hundred".