25485725 has 24 divisors (see below), whose sum is σ = 33331200. Its totient is φ = 19293120.

The previous prime is 25485709. The next prime is 25485727. The reversal of 25485725 is 52758452.

It is not a de Polignac number, because 25485725 - 2⁴ = 25485709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25485727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72851 + ... + 73199.

It is an arithmetic number, because the mean of its divisors is an integer number (1388800).

Almost surely, 2^25485725 is an apocalyptic number.

25485725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25485725 is a deficient number, since it is larger than the sum of its proper divisors (7845475).

25485725 is a wasteful number, since it uses less digits than its factorization.

25485725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 504 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 25485725 is about 5048.3388356964. The cubic root of 25485725 is about 294.2833316869.

The spelling of 25485725 in words is "twenty-five million, four hundred eighty-five thousand, seven hundred twenty-five".