56458731499 has 2 divisors, whose sum is σ = 56458731500. Its totient is φ = 56458731498.

The previous prime is 56458731487. The next prime is 56458731509. The reversal of 56458731499 is 99413785465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56458731499 - 2¹⁵ = 56458698731 is a prime.

It is a super-3 number, since 3×56458731499³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56458731449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28229365749 + 28229365750.

It is an arithmetic number, because the mean of its divisors is an integer number (28229365750).

Almost surely, 2^56458731499 is an apocalyptic number.

56458731499 is a deficient number, since it is larger than the sum of its proper divisors (1).

56458731499 is an equidigital number, since it uses as much as digits as its factorization.

56458731499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32659200, while the sum is 61.

The spelling of 56458731499 in words is "fifty-six billion, four hundred fifty-eight million, seven hundred thirty-one thousand, four hundred ninety-nine".