56548787 has 2 divisors, whose sum is σ = 56548788. Its totient is φ = 56548786.

The previous prime is 56548781. The next prime is 56548823. The reversal of 56548787 is 78784565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56548787 is a prime.

It is a super-2 number, since 2×56548787² = 6395530622342738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56548781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28274393 + 28274394.

It is an arithmetic number, because the mean of its divisors is an integer number (28274394).

Almost surely, 2^56548787 is an apocalyptic number.

56548787 is a deficient number, since it is larger than the sum of its proper divisors (1).

56548787 is an equidigital number, since it uses as much as digits as its factorization.

56548787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 50.

The square root of 56548787 is about 7519.8927518948. The cubic root of 56548787 is about 383.8319283107.

It can be divided in two parts, 5654 and 8787, that added together give a palindrome (14441).

The spelling of 56548787 in words is "fifty-six million, five hundred forty-eight thousand, seven hundred eighty-seven".