56290171391 has 2 divisors, whose sum is σ = 56290171392. Its totient is φ = 56290171390.

The previous prime is 56290171303. The next prime is 56290171403. The reversal of 56290171391 is 19317109265.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56290171391 - 2²⁶ = 56223062527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56290171891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28145085695 + 28145085696.

It is an arithmetic number, because the mean of its divisors is an integer number (28145085696).

Almost surely, 2^56290171391 is an apocalyptic number.

56290171391 is a deficient number, since it is larger than the sum of its proper divisors (1).

56290171391 is an equidigital number, since it uses as much as digits as its factorization.

56290171391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 56290171391 in words is "fifty-six billion, two hundred ninety million, one hundred seventy-one thousand, three hundred ninety-one".