253723065 has 16 divisors (see below), whose sum is σ = 419053056. Its totient is φ = 130953600.

The previous prime is 253723039. The next prime is 253723111. The reversal of 253723065 is 560327352.

It is not a de Polignac number, because 253723065 - 2⁸ = 253722809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272356 + ... + 273285.

It is an arithmetic number, because the mean of its divisors is an integer number (26190816).

Almost surely, 2^253723065 is an apocalyptic number.

It is an amenable number.

253723065 is a deficient number, since it is larger than the sum of its proper divisors (165329991).

253723065 is a wasteful number, since it uses less digits than its factorization.

253723065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545680.

The product of its (nonzero) digits is 37800, while the sum is 33.

The square root of 253723065 is about 15928.6868573652. The cubic root of 253723065 is about 633.0723071767.

The spelling of 253723065 in words is "two hundred fifty-three million, seven hundred twenty-three thousand, sixty-five".