56360549381 has 2 divisors, whose sum is σ = 56360549382. Its totient is φ = 56360549380.

The previous prime is 56360549317. The next prime is 56360549383. The reversal of 56360549381 is 18394506365.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30601904356 + 25758645025 = 174934^2 + 160495^2 .

It is a cyclic number.

It is not a de Polignac number, because 56360549381 - 2⁶ = 56360549317 is a prime.

It is a super-2 number, since 2×56360549381² (a number of 22 digits) contains 22 as substring.

Together with 56360549383, 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 (56360549383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28180274690 + 28180274691.

It is an arithmetic number, because the mean of its divisors is an integer number (28180274691).

Almost surely, 2^56360549381 is an apocalyptic number.

It is an amenable number.

56360549381 is a deficient number, since it is larger than the sum of its proper divisors (1).

56360549381 is an equidigital number, since it uses as much as digits as its factorization.

56360549381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 56360549381 in words is "fifty-six billion, three hundred sixty million, five hundred forty-nine thousand, three hundred eighty-one".