253433450 has 24 divisors (see below), whose sum is σ = 499116492. Its totient is φ = 95409920.

The previous prime is 253433429. The next prime is 253433473. The reversal of 253433450 is 54334352.

It can be written as a sum of positive squares in 6 ways, for example, as 190246849 + 63186601 = 13793^2 + 7949^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148229 + ... + 149928.

Almost surely, 2^253433450 is an apocalyptic number.

253433450 is a deficient number, since it is larger than the sum of its proper divisors (245683042).

253433450 is a wasteful number, since it uses less digits than its factorization.

253433450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298186 (or 298181 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 253433450 is about 15919.5932736989. The cubic root of 253433450 is about 632.8313396718.

The spelling of 253433450 in words is "two hundred fifty-three million, four hundred thirty-three thousand, four hundred fifty".