25008900 has 72 divisors (see below), whose sum is σ = 82703040. Its totient is φ = 5715840.

The previous prime is 25008899. The next prime is 25008901. The reversal of 25008900 is 980052.

It is an interprime number because it is at equal distance from previous prime (25008899) and next prime (25008901).

It is not an unprimeable number, because it can be changed into a prime (25008901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3855 + ... + 8054.

Almost surely, 2^25008900 is an apocalyptic number.

25008900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25008900 is an abundant number, since it is smaller than the sum of its proper divisors (57694140).

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

25008900 is a wasteful number, since it uses less digits than its factorization.

25008900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11933 (or 11926 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 25008900 is about 5000.8899208041. The cubic root of 25008900 is about 292.4364680484.

Adding to 25008900 its reverse (980052), we get a palindrome (25988952).

The spelling of 25008900 in words is "twenty-five million, eight thousand, nine hundred".