56751331 has 8 divisors (see below), whose sum is σ = 69847904. Its totient is φ = 44902080.

The previous prime is 56751329. The next prime is 56751353. The reversal of 56751331 is 13315765.

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

It is a cyclic number.

It is not a de Polignac number, because 56751331 - 2¹ = 56751329 is a prime.

It is a super-2 number, since 2×56751331² = 6441427140543122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56751293 and 56751302.

It is not an unprimeable number, because it can be changed into a prime (56751301) 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, 311730 + ... + 311911.

It is an arithmetic number, because the mean of its divisors is an integer number (8730988).

Almost surely, 2^56751331 is an apocalyptic number.

56751331 is a deficient number, since it is larger than the sum of its proper divisors (13096573).

56751331 is a wasteful number, since it uses less digits than its factorization.

56751331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623661.

The product of its digits is 9450, while the sum is 31.

The square root of 56751331 is about 7533.3479277145. The cubic root of 56751331 is about 384.2896464676.

The spelling of 56751331 in words is "fifty-six million, seven hundred fifty-one thousand, three hundred thirty-one".