57134257 has 4 divisors (see below), whose sum is σ = 57180276. Its totient is φ = 57088240.

The previous prime is 57134251. The next prime is 57134291. The reversal of 57134257 is 75243175.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13256881 + 43877376 = 3641^2 + 6624^2 .

It is a cyclic number.

It is not a de Polignac number, because 57134257 - 2³ = 57134249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57134251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21094 + ... + 23647.

It is an arithmetic number, because the mean of its divisors is an integer number (14295069).

Almost surely, 2^57134257 is an apocalyptic number.

It is an amenable number.

57134257 is a deficient number, since it is larger than the sum of its proper divisors (46019).

57134257 is a wasteful number, since it uses less digits than its factorization.

57134257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46018.

The product of its digits is 29400, while the sum is 34.

The square root of 57134257 is about 7558.7205927988. The cubic root of 57134257 is about 385.1520330573.

The spelling of 57134257 in words is "fifty-seven million, one hundred thirty-four thousand, two hundred fifty-seven".