56756481 has 8 divisors (see below), whose sum is σ = 77103360. Its totient is φ = 37123632.

The previous prime is 56756471. The next prime is 56756501. The reversal of 56756481 is 18465765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56756481 - 2¹⁴ = 56740097 is a prime.

It is a super-2 number, since 2×56756481² = 6442596271006722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56756461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178321 + ... + 178638.

It is an arithmetic number, because the mean of its divisors is an integer number (9637920).

Almost surely, 2^56756481 is an apocalyptic number.

It is an amenable number.

56756481 is a deficient number, since it is larger than the sum of its proper divisors (20346879).

56756481 is a wasteful number, since it uses less digits than its factorization.

56756481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357015.

The product of its digits is 201600, while the sum is 42.

The square root of 56756481 is about 7533.6897334573. The cubic root of 56756481 is about 384.3012704641.

It can be divided in two parts, 567564 and 81, that added together give a triangular number (567645 = T₁₀₆₅).

The spelling of 56756481 in words is "fifty-six million, seven hundred fifty-six thousand, four hundred eighty-one".