253256193 has 16 divisors (see below), whose sum is σ = 377899200. Its totient is φ = 167620320.

The previous prime is 253256189. The next prime is 253256251. The reversal of 253256193 is 391652352.

253256193 is a `hidden beast` number, since 2 + 5 + 3 + 2 + 561 + 93 = 666.

It is not a de Polignac number, because 253256193 - 2² = 253256189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253256173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29988 + ... + 37493.

It is an arithmetic number, because the mean of its divisors is an integer number (23618700).

Almost surely, 2^253256193 is an apocalyptic number.

It is an amenable number.

253256193 is a deficient number, since it is larger than the sum of its proper divisors (124643007).

253256193 is a wasteful number, since it uses less digits than its factorization.

253256193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67629 (or 67623 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 253256193 is about 15914.0250408248. The cubic root of 253256193 is about 632.6837664828.

The spelling of 253256193 in words is "two hundred fifty-three million, two hundred fifty-six thousand, one hundred ninety-three".