56293381 has 2 divisors, whose sum is σ = 56293382. Its totient is φ = 56293380.

The previous prime is 56293373. The next prime is 56293387. The reversal of 56293381 is 18339265.

56293381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38862756 + 17430625 = 6234^2 + 4175^2 .

It is a cyclic number.

It is not a de Polignac number, because 56293381 - 2³ = 56293373 is a prime.

It is a super-2 number, since 2×56293381² = 6337889488822322, 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 56293381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56293387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28146690 + 28146691.

It is an arithmetic number, because the mean of its divisors is an integer number (28146691).

Almost surely, 2^56293381 is an apocalyptic number.

It is an amenable number.

56293381 is a deficient number, since it is larger than the sum of its proper divisors (1).

56293381 is an equidigital number, since it uses as much as digits as its factorization.

56293381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 56293381 is about 7502.8915092783. The cubic root of 56293381 is about 383.2531894626.

The spelling of 56293381 in words is "fifty-six million, two hundred ninety-three thousand, three hundred eighty-one".