57274549 has 2 divisors, whose sum is σ = 57274550. Its totient is φ = 57274548.

The previous prime is 57274537. The next prime is 57274571. The reversal of 57274549 is 94547275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31080625 + 26193924 = 5575^2 + 5118^2 .

It is a cyclic number.

It is not a de Polignac number, because 57274549 - 2⁵ = 57274517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57274519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28637274 + 28637275.

It is an arithmetic number, because the mean of its divisors is an integer number (28637275).

Almost surely, 2^57274549 is an apocalyptic number.

It is an amenable number.

57274549 is a deficient number, since it is larger than the sum of its proper divisors (1).

57274549 is an equidigital number, since it uses as much as digits as its factorization.

57274549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 57274549 is about 7567.9950449244. The cubic root of 57274549 is about 385.4670196977.

The spelling of 57274549 in words is "fifty-seven million, two hundred seventy-four thousand, five hundred forty-nine".