56504145349 has 2 divisors, whose sum is σ = 56504145350. Its totient is φ = 56504145348.

The previous prime is 56504145323. The next prime is 56504145409. The reversal of 56504145349 is 94354140565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28285185124 + 28218960225 = 168182^2 + 167985^2 .

It is a cyclic number.

It is not a de Polignac number, because 56504145349 - 2⁷ = 56504145221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56504145299 and 56504145308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56504140349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28252072674 + 28252072675.

It is an arithmetic number, because the mean of its divisors is an integer number (28252072675).

Almost surely, 2^56504145349 is an apocalyptic number.

It is an amenable number.

56504145349 is a deficient number, since it is larger than the sum of its proper divisors (1).

56504145349 is an equidigital number, since it uses as much as digits as its factorization.

56504145349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 56504145349 in words is "fifty-six billion, five hundred four million, one hundred forty-five thousand, three hundred forty-nine".