56508667 has 4 divisors (see below), whose sum is σ = 56647240. Its totient is φ = 56370096.

The previous prime is 56508659. The next prime is 56508709. The reversal of 56508667 is 76680565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56508667 - 2³ = 56508659 is a prime.

It is a super-2 number, since 2×56508667² = 6386458892233778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56508167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68673 + ... + 69490.

It is an arithmetic number, because the mean of its divisors is an integer number (14161810).

Almost surely, 2^56508667 is an apocalyptic number.

56508667 is a deficient number, since it is larger than the sum of its proper divisors (138573).

56508667 is a wasteful number, since it uses less digits than its factorization.

56508667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138572.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 56508667 is about 7517.2246873431. The cubic root of 56508667 is about 383.7411336710.

It can be divided in two parts, 56508 and 667, that added together give a palindrome (57175).

The spelling of 56508667 in words is "fifty-six million, five hundred eight thousand, six hundred sixty-seven".