25830525 has 24 divisors (see below), whose sum is σ = 48808384. Its totient is φ = 11808000.

The previous prime is 25830523. The next prime is 25830529. The reversal of 25830525 is 52503852.

It is not a de Polignac number, because 25830525 - 2¹ = 25830523 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 = 25830492 and 25830501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25830523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24076 + ... + 25125.

Almost surely, 2^25830525 is an apocalyptic number.

25830525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25830525 is a deficient number, since it is larger than the sum of its proper divisors (22977859).

25830525 is a wasteful number, since it uses less digits than its factorization.

25830525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49221 (or 49216 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 25830525 is about 5082.3739531837. The cubic root of 25830525 is about 295.6045249658.

The spelling of 25830525 in words is "twenty-five million, eight hundred thirty thousand, five hundred twenty-five".