25160725 has 12 divisors (see below), whose sum is σ = 31337280. Its totient is φ = 20039600.

The previous prime is 25160687. The next prime is 25160749. The reversal of 25160725 is 52706152.

It is a de Polignac number, because none of the positive numbers 2^k-25160725 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25160693 and 25160702.

It is a congruent 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, 3870 + ... + 8080.

It is an arithmetic number, because the mean of its divisors is an integer number (2611440).

Almost surely, 2^25160725 is an apocalyptic number.

25160725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25160725 is a deficient number, since it is larger than the sum of its proper divisors (6176555).

25160725 is a wasteful number, since it uses less digits than its factorization.

25160725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460 (or 4455 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 25160725 is about 5016.0467501809. The cubic root of 25160725 is about 293.0270527581.

Adding to 25160725 its reverse (52706152), we get a palindrome (77866877).

The spelling of 25160725 in words is "twenty-five million, one hundred sixty thousand, seven hundred twenty-five".