57409258 has 4 divisors (see below), whose sum is σ = 86113890. Its totient is φ = 28704628.

The previous prime is 57409243. The next prime is 57409267. The reversal of 57409258 is 85290475.

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

It can be written as a sum of positive squares in only one way, i.e., 57259489 + 149769 = 7567^2 + 387^2 .

It is a super-2 number, since 2×57409258² = 6591645808221128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 57409258.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14352313 + ... + 14352316.

Almost surely, 2^57409258 is an apocalyptic number.

57409258 is a deficient number, since it is larger than the sum of its proper divisors (28704632).

57409258 is a wasteful number, since it uses less digits than its factorization.

57409258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28704631.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 57409258 is about 7576.8897312816. The cubic root of 57409258 is about 385.7689875649.

The spelling of 57409258 in words is "fifty-seven million, four hundred nine thousand, two hundred fifty-eight".