56507 has 6 divisors (see below), whose sum is σ = 62244. Its totient is φ = 51260.

The previous prime is 56503. The next prime is 56509. The reversal of 56507 is 70565.

It is not a de Polignac number, because 56507 - 2² = 56503 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (56501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113 + ... + 354.

It is an arithmetic number, because the mean of its divisors is an integer number (10374).

2⁵⁶⁵⁰⁷ is an apocalyptic number.

56507 is a deficient number, since it is larger than the sum of its proper divisors (5737).

56507 is a wasteful number, since it uses less digits than its factorization.

56507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 56507 is about 237.7120106347. The cubic root of 56507 is about 38.3737360192.

The spelling of 56507 in words is "fifty-six thousand, five hundred seven".