56004987 has 16 divisors (see below), whose sum is σ = 79888032. Its totient is φ = 34775040.

The previous prime is 56004979. The next prime is 56005009. The reversal of 56004987 is 78940065.

It is not a de Polignac number, because 56004987 - 2³ = 56004979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56004937) 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, 714 + ... + 10607.

It is an arithmetic number, because the mean of its divisors is an integer number (4993002).

Almost surely, 2^56004987 is an apocalyptic number.

56004987 is a deficient number, since it is larger than the sum of its proper divisors (23883045).

56004987 is a wasteful number, since it uses less digits than its factorization.

56004987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 56004987 is about 7483.6479740832. The cubic root of 56004987 is about 382.5975931076.

The spelling of 56004987 in words is "fifty-six million, four thousand, nine hundred eighty-seven".