56254057091 has 2 divisors, whose sum is σ = 56254057092. Its totient is φ = 56254057090.

The previous prime is 56254057061. The next prime is 56254057109. The reversal of 56254057091 is 19075045265.

It is a happy number.

Together with next prime (56254057109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56254057091 - 2³⁴ = 39074187907 is a prime.

It is not a weakly prime, because it can be changed into another prime (56254057061) 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, 28127028545 + 28127028546.

It is an arithmetic number, because the mean of its divisors is an integer number (28127028546).

Almost surely, 2^56254057091 is an apocalyptic number.

56254057091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56254057091 is an equidigital number, since it uses as much as digits as its factorization.

56254057091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 56254057091 in words is "fifty-six billion, two hundred fifty-four million, fifty-seven thousand, ninety-one".