253571291 has 4 divisors (see below), whose sum is σ = 254302392. Its totient is φ = 252840192.

The previous prime is 253571281. The next prime is 253571299. The reversal of 253571291 is 192175352.

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

It is a cyclic number.

It is not a de Polignac number, because 253571291 - 2²² = 249376987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253571299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365030 + ... + 365723.

It is an arithmetic number, because the mean of its divisors is an integer number (63575598).

It is a Poulet number, since it divides 2^253571290-1.

Almost surely, 2^253571291 is an apocalyptic number.

253571291 is a deficient number, since it is larger than the sum of its proper divisors (731101).

253571291 is an equidigital number, since it uses as much as digits as its factorization.

253571291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731100.

The product of its digits is 18900, while the sum is 35.

The square root of 253571291 is about 15923.9219729312. The cubic root of 253571291 is about 632.9460499897.

The spelling of 253571291 in words is "two hundred fifty-three million, five hundred seventy-one thousand, two hundred ninety-one".