25435725 has 24 divisors (see below), whose sum is σ = 48062400. Its totient is φ = 11627520.

The previous prime is 25435693. The next prime is 25435733. The reversal of 25435725 is 52753452.

It is not a de Polignac number, because 25435725 - 2⁵ = 25435693 is a prime.

It is a super-2 number, since 2×25435725² = 1293952212551250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23700 + ... + 24749.

It is an arithmetic number, because the mean of its divisors is an integer number (2002600).

Almost surely, 2^25435725 is an apocalyptic number.

25435725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25435725 is a deficient number, since it is larger than the sum of its proper divisors (22626675).

25435725 is a wasteful number, since it uses less digits than its factorization.

25435725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48469 (or 48464 counting only the distinct ones).

The product of its digits is 42000, while the sum is 33.

The square root of 25435725 is about 5043.3842804212. The cubic root of 25435725 is about 294.0907559140.

The spelling of 25435725 in words is "twenty-five million, four hundred thirty-five thousand, seven hundred twenty-five".