57530269 has 2 divisors, whose sum is σ = 57530270. Its totient is φ = 57530268.

The previous prime is 57530201. The next prime is 57530279. The reversal of 57530269 is 96203575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 6579225 = 7138^2 + 2565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57530269 is a prime.

It is a super-2 number, since 2×57530269² = 6619463702424722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57530279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28765134 + 28765135.

It is an arithmetic number, because the mean of its divisors is an integer number (28765135).

Almost surely, 2^57530269 is an apocalyptic number.

It is an amenable number.

57530269 is a deficient number, since it is larger than the sum of its proper divisors (1).

57530269 is an equidigital number, since it uses as much as digits as its factorization.

57530269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 57530269 is about 7584.8710602093. The cubic root of 57530269 is about 386.0398470681.

The spelling of 57530269 in words is "fifty-seven million, five hundred thirty thousand, two hundred sixty-nine".