253235432 has 16 divisors (see below), whose sum is σ = 475080900. Its totient is φ = 126547200.

The previous prime is 253235429. The next prime is 253235441. The reversal of 253235432 is 234532352.

It can be written as a sum of positive squares in 2 ways, for example, as 167598916 + 85636516 = 12946^2 + 9254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 253235395 and 253235404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8432 + ... + 24032.

Almost surely, 2^253235432 is an apocalyptic number.

It is an amenable number.

253235432 is a deficient number, since it is larger than the sum of its proper divisors (221845468).

253235432 is a wasteful number, since it uses less digits than its factorization.

253235432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17636 (or 17632 counting only the distinct ones).

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

The square root of 253235432 is about 15913.3727411885. The cubic root of 253235432 is about 632.6664776570. Note that the first 3 decimals are identical.

Adding to 253235432 its reverse (234532352), we get a palindrome (487767784).

The spelling of 253235432 in words is "two hundred fifty-three million, two hundred thirty-five thousand, four hundred thirty-two".