56918293 has 2 divisors, whose sum is σ = 56918294. Its totient is φ = 56918292.

The previous prime is 56918273. The next prime is 56918299. The reversal of 56918293 is 39281965.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28965924 + 27952369 = 5382^2 + 5287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56918293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56918299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28459146 + 28459147.

It is an arithmetic number, because the mean of its divisors is an integer number (28459147).

Almost surely, 2^56918293 is an apocalyptic number.

It is an amenable number.

56918293 is a deficient number, since it is larger than the sum of its proper divisors (1).

56918293 is an equidigital number, since it uses as much as digits as its factorization.

56918293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 56918293 is about 7544.4213164430. The cubic root of 56918293 is about 384.6661366063. Note that the first 3 decimals are identical.

The spelling of 56918293 in words is "fifty-six million, nine hundred eighteen thousand, two hundred ninety-three".