57430257 has 8 divisors (see below), whose sum is σ = 76617984. Its totient is φ = 38264688.

The previous prime is 57430231. The next prime is 57430277. The reversal of 57430257 is 75203475.

57430257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57430257 - 2¹⁶ = 57364721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57430207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 10895.

It is an arithmetic number, because the mean of its divisors is an integer number (9577248).

Almost surely, 2^57430257 is an apocalyptic number.

It is an amenable number.

57430257 is a deficient number, since it is larger than the sum of its proper divisors (19187727).

57430257 is a wasteful number, since it uses less digits than its factorization.

57430257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 57430257 is about 7578.2753314986. The cubic root of 57430257 is about 385.8160170032.

The spelling of 57430257 in words is "fifty-seven million, four hundred thirty thousand, two hundred fifty-seven".