253603858 has 12 divisors (see below), whose sum is σ = 404099802. Its totient is φ = 119342720.

The previous prime is 253603853. The next prime is 253603871. The reversal of 253603858 is 858306352.

It is a happy number.

253603858 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 252714609 + 889249 = 15897^2 + 943^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 253603858.

It is not an unprimeable number, because it can be changed into a prime (253603853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218803 + ... + 219958.

Almost surely, 2^253603858 is an apocalyptic number.

253603858 is a deficient number, since it is larger than the sum of its proper divisors (150495944).

253603858 is a wasteful number, since it uses less digits than its factorization.

253603858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438797 (or 438780 counting only the distinct ones).

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

The square root of 253603858 is about 15924.9445210965. The cubic root of 253603858 is about 632.9731459482.

The spelling of 253603858 in words is "two hundred fifty-three million, six hundred three thousand, eight hundred fifty-eight".