253873257 has 16 divisors (see below), whose sum is σ = 390992832. Its totient is φ = 144811520.

The previous prime is 253873219. The next prime is 253873303. The reversal of 253873257 is 752378352.

253873257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 253873257 - 2⁸ = 253873001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253873157) 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, 225708 + ... + 226829.

It is an arithmetic number, because the mean of its divisors is an integer number (24437052).

Almost surely, 2^253873257 is an apocalyptic number.

It is an amenable number.

253873257 is a deficient number, since it is larger than the sum of its proper divisors (137119575).

253873257 is a wasteful number, since it uses less digits than its factorization.

253873257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452568.

The product of its digits is 352800, while the sum is 42.

The square root of 253873257 is about 15933.4006728005. The cubic root of 253873257 is about 633.1971987795.

The spelling of 253873257 in words is "two hundred fifty-three million, eight hundred seventy-three thousand, two hundred fifty-seven".