56017087 has 4 divisors (see below), whose sum is σ = 64019536. Its totient is φ = 48014640.

The previous prime is 56017081. The next prime is 56017099. The reversal of 56017087 is 78071065.

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 56017087 - 2³ = 56017079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56017081) 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, 4001214 + ... + 4001227.

It is an arithmetic number, because the mean of its divisors is an integer number (16004884).

Almost surely, 2^56017087 is an apocalyptic number.

56017087 is a deficient number, since it is larger than the sum of its proper divisors (8002449).

56017087 is an equidigital number, since it uses as much as digits as its factorization.

56017087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002448.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 56017087 is about 7484.4563596830. The cubic root of 56017087 is about 382.6251448059.

The spelling of 56017087 in words is "fifty-six million, seventeen thousand, eighty-seven".