57261469 has 2 divisors, whose sum is σ = 57261470. Its totient is φ = 57261468.

The previous prime is 57261437. The next prime is 57261481. The reversal of 57261469 is 96416275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57198969 + 62500 = 7563^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 57261469 - 2⁵ = 57261437 is a prime.

It is a super-2 number, since 2×57261469² = 6557751664075922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57261409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28630734 + 28630735.

It is an arithmetic number, because the mean of its divisors is an integer number (28630735).

Almost surely, 2^57261469 is an apocalyptic number.

It is an amenable number.

57261469 is a deficient number, since it is larger than the sum of its proper divisors (1).

57261469 is an equidigital number, since it uses as much as digits as its factorization.

57261469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 57261469 is about 7567.1308301099. The cubic root of 57261469 is about 385.4376739554.

The spelling of 57261469 in words is "fifty-seven million, two hundred sixty-one thousand, four hundred sixty-nine".