56943094381 has 2 divisors, whose sum is σ = 56943094382. Its totient is φ = 56943094380.

The previous prime is 56943094343. The next prime is 56943094393. The reversal of 56943094381 is 18349034965.

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., 28937071881 + 28006022500 = 170109^2 + 167350^2 .

It is a cyclic number.

It is not a de Polignac number, because 56943094381 - 2¹⁵ = 56943061613 is a prime.

It is a super-2 number, since 2×56943094381² (a number of 22 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56943194381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28471547190 + 28471547191.

It is an arithmetic number, because the mean of its divisors is an integer number (28471547191).

Almost surely, 2^56943094381 is an apocalyptic number.

It is an amenable number.

56943094381 is a deficient number, since it is larger than the sum of its proper divisors (1).

56943094381 is an equidigital number, since it uses as much as digits as its factorization.

56943094381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 56943094381 in words is "fifty-six billion, nine hundred forty-three million, ninety-four thousand, three hundred eighty-one".