57226549 has 2 divisors, whose sum is σ = 57226550. Its totient is φ = 57226548.

The previous prime is 57226523. The next prime is 57226567. The reversal of 57226549 is 94562275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 7524049 = 7050^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 57226549 - 2⁵ = 57226517 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 (57226049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28613274 + 28613275.

It is an arithmetic number, because the mean of its divisors is an integer number (28613275).

Almost surely, 2^57226549 is an apocalyptic number.

It is an amenable number.

57226549 is a deficient number, since it is larger than the sum of its proper divisors (1).

57226549 is an equidigital number, since it uses as much as digits as its factorization.

57226549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 57226549 is about 7564.8231307810. The cubic root of 57226549 is about 385.3593070025.

It can be divided in two parts, 57226 and 549, that added together give a palindrome (57775).

The spelling of 57226549 in words is "fifty-seven million, two hundred twenty-six thousand, five hundred forty-nine".