56777250 has 32 divisors (see below), whose sum is σ = 141717888. Its totient is φ = 15140400.

The previous prime is 56777239. The next prime is 56777291. The reversal of 56777250 is 5277765.

It is a super-2 number, since 2×56777250² = 6447312235125000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56777199 and 56777208.

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 15 ways as a sum of consecutive naturals, for example, 37102 + ... + 38601.

It is an arithmetic number, because the mean of its divisors is an integer number (4428684).

Almost surely, 2^56777250 is an apocalyptic number.

56777250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56777250 is an abundant number, since it is smaller than the sum of its proper divisors (84940638).

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

56777250 is a wasteful number, since it uses less digits than its factorization.

56777250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75723 (or 75713 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 56777250 is about 7535.0680156187. The cubic root of 56777250 is about 384.3481407631.

The spelling of 56777250 in words is "fifty-six million, seven hundred seventy-seven thousand, two hundred fifty".