56920287 has 8 divisors (see below), whose sum is σ = 76333104. Its totient is φ = 37727168.

The previous prime is 56920271. The next prime is 56920313. The reversal of 56920287 is 78202965.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56920287 - 2⁴ = 56920271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56920207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54318 + ... + 55355.

It is an arithmetic number, because the mean of its divisors is an integer number (9541638).

Almost surely, 2^56920287 is an apocalyptic number.

56920287 is a deficient number, since it is larger than the sum of its proper divisors (19412817).

56920287 is a wasteful number, since it uses less digits than its factorization.

56920287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109849.

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

The square root of 56920287 is about 7544.5534659117. The cubic root of 56920287 is about 384.6706285150.

The spelling of 56920287 in words is "fifty-six million, nine hundred twenty thousand, two hundred eighty-seven".