56756280 has 64 divisors (see below), whose sum is σ = 194595840. Its totient is φ = 12972672.

The previous prime is 56756263. The next prime is 56756281. The reversal of 56756280 is 8265765.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56756281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32944 + ... + 34623.

It is an arithmetic number, because the mean of its divisors is an integer number (3040560).

Almost surely, 2^56756280 is an apocalyptic number.

It is an amenable number.

56756280 is an abundant number, since it is smaller than the sum of its proper divisors (137839560).

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

56756280 is a wasteful number, since it uses less digits than its factorization.

56756280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67588 (or 67584 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 56756280 is about 7533.6763933686. The cubic root of 56756280 is about 384.3008168028.

The spelling of 56756280 in words is "fifty-six million, seven hundred fifty-six thousand, two hundred eighty".