25732825 has 12 divisors (see below), whose sum is σ = 32512428. Its totient is φ = 20196800.

The previous prime is 25732823. The next prime is 25732841. The reversal of 25732825 is 52823752.

It can be written as a sum of positive squares in 6 ways, for example, as 2152089 + 23580736 = 1467^2 + 4856^2 .

It is not a de Polignac number, because 25732825 - 2¹ = 25732823 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (25732823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8386 + ... + 11035.

It is an arithmetic number, because the mean of its divisors is an integer number (2709369).

Almost surely, 2^25732825 is an apocalyptic number.

25732825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25732825 is a deficient number, since it is larger than the sum of its proper divisors (6779603).

25732825 is a wasteful number, since it uses less digits than its factorization.

25732825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19484 (or 19479 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 25732825 is about 5072.7531972293. The cubic root of 25732825 is about 295.2313611619.

The spelling of 25732825 in words is "twenty-five million, seven hundred thirty-two thousand, eight hundred twenty-five".