56885861 has 4 divisors (see below), whose sum is σ = 58208832. Its totient is φ = 55562892.

The previous prime is 56885827. The next prime is 56885869. The reversal of 56885861 is 16858865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56885861 - 2⁶ = 56885797 is a prime.

It is a super-2 number, since 2×56885861² = 6472002363422642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56885869) 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, 661421 + ... + 661506.

It is an arithmetic number, because the mean of its divisors is an integer number (14552208).

Almost surely, 2^56885861 is an apocalyptic number.

It is an amenable number.

56885861 is a deficient number, since it is larger than the sum of its proper divisors (1322971).

56885861 is a wasteful number, since it uses less digits than its factorization.

56885861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322970.

The product of its digits is 460800, while the sum is 47.

The square root of 56885861 is about 7542.2716074138. The cubic root of 56885861 is about 384.5930619014.

The spelling of 56885861 in words is "fifty-six million, eight hundred eighty-five thousand, eight hundred sixty-one".