253965033 has 24 divisors (see below), whose sum is σ = 421436288. Its totient is φ = 144364032.

The previous prime is 253965007. The next prime is 253965037. The reversal of 253965033 is 330569352.

It is not a de Polignac number, because 253965033 - 2⁹ = 253964521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253965037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716 + ... + 22602.

Almost surely, 2^253965033 is an apocalyptic number.

It is an amenable number.

253965033 is a deficient number, since it is larger than the sum of its proper divisors (167471255).

253965033 is a wasteful number, since it uses less digits than its factorization.

253965033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093 (or 21090 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 36.

The square root of 253965033 is about 15936.2804003946. The cubic root of 253965033 is about 633.2734905292.

The spelling of 253965033 in words is "two hundred fifty-three million, nine hundred sixty-five thousand, thirty-three".