257653075 has 12 divisors (see below), whose sum is σ = 320015728. Its totient is φ = 205783200.

The previous prime is 257653073. The next prime is 257653117. The reversal of 257653075 is 570356752.

It is not a de Polignac number, because 257653075 - 2¹ = 257653073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257653073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7609 + ... + 23941.

Almost surely, 2^257653075 is an apocalyptic number.

257653075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257653075 is a deficient number, since it is larger than the sum of its proper divisors (62362653).

257653075 is a wasteful number, since it uses less digits than its factorization.

257653075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16974 (or 16969 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 40.

The square root of 257653075 is about 16051.5754678474. The cubic root of 257653075 is about 636.3242046222.

The spelling of 257653075 in words is "two hundred fifty-seven million, six hundred fifty-three thousand, seventy-five".