56306378231 has 2 divisors, whose sum is σ = 56306378232. Its totient is φ = 56306378230.

The previous prime is 56306378207. The next prime is 56306378239. The reversal of 56306378231 is 13287360365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56306378231 - 2³⁴ = 39126509047 is a prime.

It is a super-2 number, since 2×56306378231² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56306378239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28153189115 + 28153189116.

It is an arithmetic number, because the mean of its divisors is an integer number (28153189116).

Almost surely, 2^56306378231 is an apocalyptic number.

56306378231 is a deficient number, since it is larger than the sum of its proper divisors (1).

56306378231 is an equidigital number, since it uses as much as digits as its factorization.

56306378231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 56306378231 in words is "fifty-six billion, three hundred six million, three hundred seventy-eight thousand, two hundred thirty-one".