253405252 has 12 divisors (see below), whose sum is σ = 443575440. Its totient is φ = 126669416.

The previous prime is 253405241. The next prime is 253405289. The reversal of 253405252 is 252504352.

It is a self number, because there is not a number n which added to its sum of digits gives 253405252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18423 + ... + 29089.

It is an arithmetic number, because the mean of its divisors is an integer number (36964620).

Almost surely, 2^253405252 is an apocalyptic number.

It is an amenable number.

253405252 is a deficient number, since it is larger than the sum of its proper divisors (190170188).

253405252 is a wasteful number, since it uses less digits than its factorization.

253405252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16610 (or 16608 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 253405252 is about 15918.7076108584. The cubic root of 253405252 is about 632.8078683687.

The spelling of 253405252 in words is "two hundred fifty-three million, four hundred five thousand, two hundred fifty-two".