56081297 has 2 divisors, whose sum is σ = 56081298. Its totient is φ = 56081296.

The previous prime is 56081287. The next prime is 56081309. The reversal of 56081297 is 79218065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33651601 + 22429696 = 5801^2 + 4736^2 .

It is a cyclic number.

It is not a de Polignac number, because 56081297 - 2¹⁶ = 56015761 is a prime.

It is a super-2 number, since 2×56081297² = 6290223746404418, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56081297.

It is not a weakly prime, because it can be changed into another prime (56081227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28040648 + 28040649.

It is an arithmetic number, because the mean of its divisors is an integer number (28040649).

Almost surely, 2^56081297 is an apocalyptic number.

It is an amenable number.

56081297 is a deficient number, since it is larger than the sum of its proper divisors (1).

56081297 is an equidigital number, since it uses as much as digits as its factorization.

56081297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 56081297 is about 7488.7446878632. The cubic root of 56081297 is about 382.7712846156.

The spelling of 56081297 in words is "fifty-six million, eighty-one thousand, two hundred ninety-seven".