253838885 has 16 divisors (see below), whose sum is σ = 319440240. Its totient is φ = 193374720.

The previous prime is 253838861. The next prime is 253838887. The reversal of 253838885 is 588838352.

It can be written as a sum of positive squares in 8 ways, for example, as 40883236 + 212955649 = 6394^2 + 14593^2 .

It is not a de Polignac number, because 253838885 - 2¹⁰ = 253837861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253838887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1406 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (19965015).

Almost surely, 2^253838885 is an apocalyptic number.

It is an amenable number.

253838885 is a deficient number, since it is larger than the sum of its proper divisors (65601355).

253838885 is a wasteful number, since it uses less digits than its factorization.

253838885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24088.

The product of its digits is 1843200, while the sum is 50.

The square root of 253838885 is about 15932.3220216012. The cubic root of 253838885 is about 633.1686212172.

The spelling of 253838885 in words is "two hundred fifty-three million, eight hundred thirty-eight thousand, eight hundred eighty-five".