253918825 has 6 divisors (see below), whose sum is σ = 314859374. Its totient is φ = 203135040.

The previous prime is 253918823. The next prime is 253918843. The reversal of 253918825 is 528819352.

It can be written as a sum of positive squares in 3 ways, for example, as 1140624 + 252778201 = 1068^2 + 15899^2 .

It is not a de Polignac number, because 253918825 - 2¹ = 253918823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253918823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5078352 + ... + 5078401.

Almost surely, 2^253918825 is an apocalyptic number.

253918825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253918825 is a deficient number, since it is larger than the sum of its proper divisors (60940549).

253918825 is a wasteful number, since it uses less digits than its factorization.

253918825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10156763 (or 10156758 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 253918825 is about 15934.8305607559. The cubic root of 253918825 is about 633.2350809418.

The spelling of 253918825 in words is "two hundred fifty-three million, nine hundred eighteen thousand, eight hundred twenty-five".