56156061139 has 2 divisors, whose sum is σ = 56156061140. Its totient is φ = 56156061138.

The previous prime is 56156061037. The next prime is 56156061149. The reversal of 56156061139 is 93116065165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56156061139 - 2¹³ = 56156052947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56156061095 and 56156061104.

It is not a weakly prime, because it can be changed into another prime (56156061149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28078030569 + 28078030570.

It is an arithmetic number, because the mean of its divisors is an integer number (28078030570).

Almost surely, 2^56156061139 is an apocalyptic number.

56156061139 is a deficient number, since it is larger than the sum of its proper divisors (1).

56156061139 is an equidigital number, since it uses as much as digits as its factorization.

56156061139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 43.

The spelling of 56156061139 in words is "fifty-six billion, one hundred fifty-six million, sixty-one thousand, one hundred thirty-nine".