56772200 has 24 divisors (see below), whose sum is σ = 131995830. Its totient is φ = 22708800.

The previous prime is 56772161. The next prime is 56772223. The reversal of 56772200 is 227765.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 24940036 + 31832164 = 4994^2 + 5642^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141731 + ... + 142130.

Almost surely, 2^56772200 is an apocalyptic number.

56772200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56772200 is an abundant number, since it is smaller than the sum of its proper divisors (75223630).

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

56772200 is a wasteful number, since it uses less digits than its factorization.

56772200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283877 (or 283868 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 56772200 is about 7534.7329083386. The cubic root of 56772200 is about 384.3367452620.

Adding to 56772200 its reverse (227765), we get a palindrome (56999965).

The spelling of 56772200 in words is "fifty-six million, seven hundred seventy-two thousand, two hundred".