56314981 has 2 divisors, whose sum is σ = 56314982. Its totient is φ = 56314980.

The previous prime is 56314963. The next prime is 56314987. The reversal of 56314981 is 18941365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 1050625 = 7434^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 56314981 - 2⁵ = 56314949 is a prime.

It is a super-2 number, since 2×56314981² = 6342754170060722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56314981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56314987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28157490 + 28157491.

It is an arithmetic number, because the mean of its divisors is an integer number (28157491).

Almost surely, 2^56314981 is an apocalyptic number.

It is an amenable number.

56314981 is a deficient number, since it is larger than the sum of its proper divisors (1).

56314981 is an equidigital number, since it uses as much as digits as its factorization.

56314981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 56314981 is about 7504.3308162687. The cubic root of 56314981 is about 383.3022017986.

The spelling of 56314981 in words is "fifty-six million, three hundred fourteen thousand, nine hundred eighty-one".