25612280 has 16 divisors (see below), whose sum is σ = 57627720. Its totient is φ = 10244896.

The previous prime is 25612273. The next prime is 25612283. The reversal of 25612280 is 8221652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25612283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320114 + ... + 320193.

Almost surely, 2^25612280 is an apocalyptic number.

25612280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25612280 is an abundant number, since it is smaller than the sum of its proper divisors (32015440).

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

25612280 is a wasteful number, since it uses less digits than its factorization.

25612280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640318 (or 640314 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25612280 is about 5060.8576348283. The cubic root of 25612280 is about 294.7696372611.

The spelling of 25612280 in words is "twenty-five million, six hundred twelve thousand, two hundred eighty".