56312587 has 2 divisors, whose sum is σ = 56312588. Its totient is φ = 56312586.

The previous prime is 56312569. The next prime is 56312593. The reversal of 56312587 is 78521365.

56312587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56312587 is a prime.

It is a super-2 number, since 2×56312587² = 6342214909265138, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (56312507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28156293 + 28156294.

It is an arithmetic number, because the mean of its divisors is an integer number (28156294).

Almost surely, 2^56312587 is an apocalyptic number.

56312587 is a deficient number, since it is larger than the sum of its proper divisors (1).

56312587 is an equidigital number, since it uses as much as digits as its factorization.

56312587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 56312587 is about 7504.1713066800. The cubic root of 56312587 is about 383.2967702156.

The spelling of 56312587 in words is "fifty-six million, three hundred twelve thousand, five hundred eighty-seven".