56168549 has 2 divisors, whose sum is σ = 56168550. Its totient is φ = 56168548.

The previous prime is 56168537. The next prime is 56168573. The reversal of 56168549 is 94586165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 2951524 = 7295^2 + 1718^2 .

It is a cyclic number.

It is not a de Polignac number, because 56168549 - 2⁸ = 56168293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56168509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28084274 + 28084275.

It is an arithmetic number, because the mean of its divisors is an integer number (28084275).

Almost surely, 2^56168549 is an apocalyptic number.

It is an amenable number.

56168549 is a deficient number, since it is larger than the sum of its proper divisors (1).

56168549 is an equidigital number, since it uses as much as digits as its factorization.

56168549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 44.

The square root of 56168549 is about 7494.5679662006. The cubic root of 56168549 is about 382.9696885800.

The spelling of 56168549 in words is "fifty-six million, one hundred sixty-eight thousand, five hundred forty-nine".