56861442433 has 2 divisors, whose sum is σ = 56861442434. Its totient is φ = 56861442432.

The previous prime is 56861442419. The next prime is 56861442457. The reversal of 56861442433 is 33424416865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48290941504 + 8570500929 = 219752^2 + 92577^2 .

It is a cyclic number.

It is not a de Polignac number, because 56861442433 - 2⁵ = 56861442401 is a prime.

It is a super-2 number, since 2×56861442433² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56861542433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28430721216 + 28430721217.

It is an arithmetic number, because the mean of its divisors is an integer number (28430721217).

Almost surely, 2^56861442433 is an apocalyptic number.

It is an amenable number.

56861442433 is a deficient number, since it is larger than the sum of its proper divisors (1).

56861442433 is an equidigital number, since it uses as much as digits as its factorization.

56861442433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 46.

The spelling of 56861442433 in words is "fifty-six billion, eight hundred sixty-one million, four hundred forty-two thousand, four hundred thirty-three".