25632280 has 32 divisors (see below), whose sum is σ = 57965040. Its totient is φ = 10200960.

The previous prime is 25632253. The next prime is 25632293. The reversal of 25632280 is 8223652.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6922 + ... + 9958.

Almost surely, 2^25632280 is an apocalyptic number.

25632280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25632280 is an abundant number, since it is smaller than the sum of its proper divisors (32332760).

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

25632280 is a wasteful number, since it uses less digits than its factorization.

25632280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259 (or 3255 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25632280 is about 5062.8331989115. The cubic root of 25632280 is about 294.8463434204.

The spelling of 25632280 in words is "twenty-five million, six hundred thirty-two thousand, two hundred eighty".