57275399 has 2 divisors, whose sum is σ = 57275400. Its totient is φ = 57275398.

The previous prime is 57275389. The next prime is 57275411. The reversal of 57275399 is 99357275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57275399 - 2¹⁶ = 57209863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57275369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28637699 + 28637700.

It is an arithmetic number, because the mean of its divisors is an integer number (28637700).

Almost surely, 2^57275399 is an apocalyptic number.

57275399 is a deficient number, since it is larger than the sum of its proper divisors (1).

57275399 is an equidigital number, since it uses as much as digits as its factorization.

57275399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350, while the sum is 47.

The square root of 57275399 is about 7568.0512022581. The cubic root of 57275399 is about 385.4689265677.

The spelling of 57275399 in words is "fifty-seven million, two hundred seventy-five thousand, three hundred ninety-nine".