25532725 has 12 divisors (see below), whose sum is σ = 33523524. Its totient is φ = 19224320.

The previous prime is 25532723. The next prime is 25532729. The reversal of 25532725 is 52723552.

It can be written as a sum of positive squares in 6 ways, for example, as 60516 + 25472209 = 246^2 + 5047^2 .

It is not a de Polignac number, because 25532725 - 2¹ = 25532723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25532723) 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, 29614 + ... + 30463.

It is an arithmetic number, because the mean of its divisors is an integer number (2793627).

Almost surely, 2^25532725 is an apocalyptic number.

25532725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25532725 is a deficient number, since it is larger than the sum of its proper divisors (7990799).

25532725 is a wasteful number, since it uses less digits than its factorization.

25532725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60104 (or 60099 counting only the distinct ones).

The product of its digits is 21000, while the sum is 31.

The square root of 25532725 is about 5052.9916880992. The cubic root of 25532725 is about 294.4641233897.

The spelling of 25532725 in words is "twenty-five million, five hundred thirty-two thousand, seven hundred twenty-five".