25539125 has 16 divisors (see below), whose sum is σ = 32084208. Its totient is φ = 20296000.

The previous prime is 25539113. The next prime is 25539149. The reversal of 25539125 is 52193552.

It can be written as a sum of positive squares in 8 ways, for example, as 358801 + 25180324 = 599^2 + 5018^2 .

It is not a de Polignac number, because 25539125 - 2¹⁴ = 25522741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25539091 and 25539100.

It is a congruent number.

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, 21035 + ... + 22215.

It is an arithmetic number, because the mean of its divisors is an integer number (2005263).

Almost surely, 2^25539125 is an apocalyptic number.

25539125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25539125 is a deficient number, since it is larger than the sum of its proper divisors (6545083).

25539125 is a wasteful number, since it uses less digits than its factorization.

25539125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1359 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 25539125 is about 5053.6249366173. The cubic root of 25539125 is about 294.4887246671.

The spelling of 25539125 in words is "twenty-five million, five hundred thirty-nine thousand, one hundred twenty-five".