56092981 has 16 divisors (see below), whose sum is σ = 67099648. Its totient is φ = 45878400.

The previous prime is 56092973. The next prime is 56093017. The reversal of 56092981 is 18929065.

It is a cyclic number.

It is not a de Polignac number, because 56092981 - 2³ = 56092973 is a prime.

It is a super-2 number, since 2×56092981² = 6292845034932722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56092951) 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, 14071 + ... + 17611.

It is an arithmetic number, because the mean of its divisors is an integer number (4193728).

Almost surely, 2^56092981 is an apocalyptic number.

It is an amenable number.

56092981 is a deficient number, since it is larger than the sum of its proper divisors (11006667).

56092981 is a wasteful number, since it uses less digits than its factorization.

56092981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 56092981 is about 7489.5247512776. The cubic root of 56092981 is about 382.7978650110.

The spelling of 56092981 in words is "fifty-six million, ninety-two thousand, nine hundred eighty-one".