56115145451 has 2 divisors, whose sum is σ = 56115145452. Its totient is φ = 56115145450.

The previous prime is 56115145447. The next prime is 56115145501. The reversal of 56115145451 is 15454151165.

56115145451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56115145451 - 2² = 56115145447 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56115145421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28057572725 + 28057572726.

It is an arithmetic number, because the mean of its divisors is an integer number (28057572726).

Almost surely, 2^56115145451 is an apocalyptic number.

56115145451 is a deficient number, since it is larger than the sum of its proper divisors (1).

56115145451 is an equidigital number, since it uses as much as digits as its factorization.

56115145451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60000, while the sum is 38.

The spelling of 56115145451 in words is "fifty-six billion, one hundred fifteen million, one hundred forty-five thousand, four hundred fifty-one".