25232525 has 6 divisors (see below), whose sum is σ = 31288362. Its totient is φ = 20186000.

The previous prime is 25232509. The next prime is 25232533. The reversal of 25232525 is 52523252.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 212521 + 25020004 = 461^2 + 5002^2 .

It is not a de Polignac number, because 25232525 - 2⁴ = 25232509 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25232494 and 25232503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 504626 + ... + 504675.

It is an arithmetic number, because the mean of its divisors is an integer number (5214727).

Almost surely, 2^25232525 is an apocalyptic number.

25232525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25232525 is a deficient number, since it is larger than the sum of its proper divisors (6055837).

25232525 is a wasteful number, since it uses less digits than its factorization.

25232525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009311 (or 1009306 counting only the distinct ones).

The product of its digits is 6000, while the sum is 26.

The square root of 25232525 is about 5023.1986821148. The cubic root of 25232525 is about 293.3055206355.

Adding to 25232525 its reverse (52523252), we get a palindrome (77755777).

The spelling of 25232525 in words is "twenty-five million, two hundred thirty-two thousand, five hundred twenty-five".