253530868 has 24 divisors (see below), whose sum is σ = 448922880. Its totient is φ = 125274240.

The previous prime is 253530811. The next prime is 253530899. The reversal of 253530868 is 868035352.

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 253530868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215923 + ... + 217093.

It is an arithmetic number, because the mean of its divisors is an integer number (18705120).

Almost surely, 2^253530868 is an apocalyptic number.

It is an amenable number.

253530868 is a deficient number, since it is larger than the sum of its proper divisors (195392012).

253530868 is a wasteful number, since it uses less digits than its factorization.

253530868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1767 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 253530868 is about 15922.6526684469. The cubic root of 253530868 is about 632.9124145601.

The spelling of 253530868 in words is "two hundred fifty-three million, five hundred thirty thousand, eight hundred sixty-eight".