56120403589 has 2 divisors, whose sum is σ = 56120403590. Its totient is φ = 56120403588.

The previous prime is 56120403583. The next prime is 56120403593. The reversal of 56120403589 is 98530402165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47238849025 + 8881554564 = 217345^2 + 94242^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56120403589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56120403583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28060201794 + 28060201795.

It is an arithmetic number, because the mean of its divisors is an integer number (28060201795).

Almost surely, 2^56120403589 is an apocalyptic number.

It is an amenable number.

56120403589 is a deficient number, since it is larger than the sum of its proper divisors (1).

56120403589 is an equidigital number, since it uses as much as digits as its factorization.

56120403589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 56120403589 in words is "fifty-six billion, one hundred twenty million, four hundred three thousand, five hundred eighty-nine".