253138075 has 24 divisors (see below), whose sum is σ = 337076640. Its totient is φ = 187891200.

The previous prime is 253138057. The next prime is 253138091. The reversal of 253138075 is 570831352.

It is not a de Polignac number, because 253138075 - 2²⁵ = 219583643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253138075.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25981 + ... + 34369.

It is an arithmetic number, because the mean of its divisors is an integer number (14044860).

Almost surely, 2^253138075 is an apocalyptic number.

253138075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253138075 is a deficient number, since it is larger than the sum of its proper divisors (83938565).

253138075 is a wasteful number, since it uses less digits than its factorization.

253138075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8487 (or 8482 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 253138075 is about 15910.3134789985. The cubic root of 253138075 is about 632.5853905242.

The spelling of 253138075 in words is "two hundred fifty-three million, one hundred thirty-eight thousand, seventy-five".