56687901 has 8 divisors (see below), whose sum is σ = 75654144. Its totient is φ = 37756800.

The previous prime is 56687879. The next prime is 56687903. The reversal of 56687901 is 10978665.

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

It is not a de Polignac number, because 56687901 - 2¹⁸ = 56425757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56687903) 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, 4756 + ... + 11661.

It is an arithmetic number, because the mean of its divisors is an integer number (9456768).

Almost surely, 2^56687901 is an apocalyptic number.

It is an amenable number.

56687901 is a deficient number, since it is larger than the sum of its proper divisors (18966243).

56687901 is a wasteful number, since it uses less digits than its factorization.

56687901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17571.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 56687901 is about 7529.1368031136. The cubic root of 56687901 is about 384.1464217546.

The spelling of 56687901 in words is "fifty-six million, six hundred eighty-seven thousand, nine hundred one".