25205275 has 12 divisors (see below), whose sum is σ = 31384152. Its totient is φ = 20080640.

The previous prime is 25205239. The next prime is 25205281. The reversal of 25205275 is 57250252.

It is a de Polignac number, because none of the positive numbers 2^k-25205275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4464 + ... + 8386.

It is an arithmetic number, because the mean of its divisors is an integer number (2615346).

Almost surely, 2^25205275 is an apocalyptic number.

25205275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25205275 is a deficient number, since it is larger than the sum of its proper divisors (6178877).

25205275 is a wasteful number, since it uses less digits than its factorization.

25205275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190 (or 4185 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 25205275 is about 5020.4855342885. The cubic root of 25205275 is about 293.1998969828.

The spelling of 25205275 in words is "twenty-five million, two hundred five thousand, two hundred seventy-five".