253253242 has 24 divisors (see below), whose sum is σ = 439538400. Its totient is φ = 109054440.

The previous prime is 253253191. The next prime is 253253251. The reversal of 253253242 is 242352352.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 253253242.

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, 22942 + ... + 32137.

It is an arithmetic number, because the mean of its divisors is an integer number (18314100).

Almost surely, 2^253253242 is an apocalyptic number.

253253242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253253242 is a deficient number, since it is larger than the sum of its proper divisors (186285158).

253253242 is a wasteful number, since it uses less digits than its factorization.

253253242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55122 (or 55111 counting only the distinct ones).

The product of its digits is 14400, while the sum is 28.

The square root of 253253242 is about 15913.9323235962. The cubic root of 253253242 is about 632.6813090805.

The spelling of 253253242 in words is "two hundred fifty-three million, two hundred fifty-three thousand, two hundred forty-two".