56424249317 has 2 divisors, whose sum is σ = 56424249318. Its totient is φ = 56424249316.

The previous prime is 56424249283. The next prime is 56424249319. The reversal of 56424249317 is 71394242465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40467759556 + 15956489761 = 201166^2 + 126319^2 .

It is a cyclic number.

It is not a de Polignac number, because 56424249317 - 2³⁰ = 55350507493 is a prime.

Together with 56424249319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56424249319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28212124658 + 28212124659.

It is an arithmetic number, because the mean of its divisors is an integer number (28212124659).

Almost surely, 2^56424249317 is an apocalyptic number.

It is an amenable number.

56424249317 is a deficient number, since it is larger than the sum of its proper divisors (1).

56424249317 is an equidigital number, since it uses as much as digits as its factorization.

56424249317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The spelling of 56424249317 in words is "fifty-six billion, four hundred twenty-four million, two hundred forty-nine thousand, three hundred seventeen".