257375095258 has 4 divisors (see below), whose sum is σ = 386062642890. Its totient is φ = 128687547628.

The previous prime is 257375095253. The next prime is 257375095261. The reversal of 257375095258 is 852590573752.

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., 158454151969 + 98920943289 = 398063^2 + 314517^2 .

It is not an unprimeable number, because it can be changed into a prime (257375095253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64343773813 + ... + 64343773816.

Almost surely, 2^257375095258 is an apocalyptic number.

257375095258 is a deficient number, since it is larger than the sum of its proper divisors (128687547632).

257375095258 is a wasteful number, since it uses less digits than its factorization.

257375095258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128687547631.

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 257375095258 in words is "two hundred fifty-seven billion, three hundred seventy-five million, ninety-five thousand, two hundred fifty-eight".