56313987 has 16 divisors (see below), whose sum is σ = 76151712. Its totient is φ = 37013760.

The previous prime is 56313977. The next prime is 56313989. The reversal of 56313987 is 78931365.

It is not a de Polignac number, because 56313987 - 2¹⁴ = 56297603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56313989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74013 + ... + 74769.

It is an arithmetic number, because the mean of its divisors is an integer number (4759482).

Almost surely, 2^56313987 is an apocalyptic number.

56313987 is a deficient number, since it is larger than the sum of its proper divisors (19837725).

56313987 is a wasteful number, since it uses less digits than its factorization.

56313987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078.

The product of its digits is 136080, while the sum is 42.

The square root of 56313987 is about 7504.2645875529. The cubic root of 56313987 is about 383.2999465986.

The spelling of 56313987 in words is "fifty-six million, three hundred thirteen thousand, nine hundred eighty-seven".