25632500 has 30 divisors (see below), whose sum is σ = 56058618. Its totient is φ = 10252000.

The previous prime is 25632493. The next prime is 25632517. The reversal of 25632500 is 523652.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 15570916 + 10061584 = 3946^2 + 3172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2627 + ... + 7626.

Almost surely, 2^25632500 is an apocalyptic number.

25632500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25632500 is an abundant number, since it is smaller than the sum of its proper divisors (30426118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25632500 is a wasteful number, since it uses less digits than its factorization.

25632500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10277 (or 10260 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 25632500 is about 5062.8549258299. The cubic root of 25632500 is about 294.8471869662.

The spelling of 25632500 in words is "twenty-five million, six hundred thirty-two thousand, five hundred".