253912065 has 48 divisors (see below), whose sum is σ = 463458240. Its totient is φ = 117715840.

The previous prime is 253912063. The next prime is 253912079. The reversal of 253912065 is 560219352.

It is not a de Polignac number, because 253912065 - 2¹ = 253912063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (253912063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85831 + ... + 88739.

It is an arithmetic number, because the mean of its divisors is an integer number (9655380).

Almost surely, 2^253912065 is an apocalyptic number.

It is an amenable number.

253912065 is a deficient number, since it is larger than the sum of its proper divisors (209546175).

253912065 is a wasteful number, since it uses less digits than its factorization.

253912065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 253912065 is about 15934.6184453849. The cubic root of 253912065 is about 633.2294614200.

The spelling of 253912065 in words is "two hundred fifty-three million, nine hundred twelve thousand, sixty-five".