56245549 has 2 divisors, whose sum is σ = 56245550. Its totient is φ = 56245548.

The previous prime is 56245517. The next prime is 56245583. The reversal of 56245549 is 94554265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55980324 + 265225 = 7482^2 + 515^2 .

It is a cyclic number.

It is not a de Polignac number, because 56245549 - 2⁵ = 56245517 is a prime.

It is a super-2 number, since 2×56245549² = 6327123564622802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56245589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28122774 + 28122775.

It is an arithmetic number, because the mean of its divisors is an integer number (28122775).

Almost surely, 2^56245549 is an apocalyptic number.

It is an amenable number.

56245549 is a deficient number, since it is larger than the sum of its proper divisors (1).

56245549 is an equidigital number, since it uses as much as digits as its factorization.

56245549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 40.

The square root of 56245549 is about 7499.7032607964. The cubic root of 56245549 is about 383.1446097279.

The spelling of 56245549 in words is "fifty-six million, two hundred forty-five thousand, five hundred forty-nine".