253025505 has 16 divisors (see below), whose sum is σ = 449823360. Its totient is φ = 134946864.

The previous prime is 253025497. The next prime is 253025533. The reversal of 253025505 is 505520352.

It is not a de Polignac number, because 253025505 - 2³ = 253025497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936997 + ... + 937266.

It is an arithmetic number, because the mean of its divisors is an integer number (28113960).

Almost surely, 2^253025505 is an apocalyptic number.

It is an amenable number.

253025505 is a deficient number, since it is larger than the sum of its proper divisors (196797855).

253025505 is a wasteful number, since it uses less digits than its factorization.

253025505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874277 (or 1874271 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 253025505 is about 15906.7754431877. The cubic root of 253025505 is about 632.4916067981.

Adding to 253025505 its reverse (505520352), we get a palindrome (758545857).

The spelling of 253025505 in words is "two hundred fifty-three million, twenty-five thousand, five hundred five".