56181299 has 2 divisors, whose sum is σ = 56181300. Its totient is φ = 56181298.

The previous prime is 56181259. The next prime is 56181319. The reversal of 56181299 is 99218165.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56181299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56181239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28090649 + 28090650.

It is an arithmetic number, because the mean of its divisors is an integer number (28090650).

Almost surely, 2^56181299 is an apocalyptic number.

56181299 is a deficient number, since it is larger than the sum of its proper divisors (1).

56181299 is an equidigital number, since it uses as much as digits as its factorization.

56181299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 41.

The square root of 56181299 is about 7495.4185340113. The cubic root of 56181299 is about 382.9986638352.

The spelling of 56181299 in words is "fifty-six million, one hundred eighty-one thousand, two hundred ninety-nine".