56307331 has 8 divisors (see below), whose sum is σ = 58040928. Its totient is φ = 54600000.

The previous prime is 56307323. The next prime is 56307347. The reversal of 56307331 is 13370365.

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 56307331 - 2³ = 56307323 is a prime.

It is a super-2 number, since 2×56307331² = 6341031048687122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56307331.

It is not an unprimeable number, because it can be changed into a prime (56307301) 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, 2170 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (7255116).

Almost surely, 2^56307331 is an apocalyptic number.

56307331 is a deficient number, since it is larger than the sum of its proper divisors (1733597).

56307331 is a wasteful number, since it uses less digits than its factorization.

56307331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13133.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 56307331 is about 7503.8210932831. The cubic root of 56307331 is about 383.2848446965.

Adding to 56307331 its reverse (13370365), we get a palindrome (69677696).

The spelling of 56307331 in words is "fifty-six million, three hundred seven thousand, three hundred thirty-one".