56458731487 has 2 divisors, whose sum is σ = 56458731488. Its totient is φ = 56458731486.

The previous prime is 56458731479. The next prime is 56458731499. The reversal of 56458731487 is 78413785465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56458731487 - 2³ = 56458731479 is a prime.

It is a super-2 number, since 2×56458731487² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56458731587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28229365743 + 28229365744.

It is an arithmetic number, because the mean of its divisors is an integer number (28229365744).

Almost surely, 2^56458731487 is an apocalyptic number.

56458731487 is a deficient number, since it is larger than the sum of its proper divisors (1).

56458731487 is an equidigital number, since it uses as much as digits as its factorization.

56458731487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22579200, while the sum is 58.

The spelling of 56458731487 in words is "fifty-six billion, four hundred fifty-eight million, seven hundred thirty-one thousand, four hundred eighty-seven".