25872220 has 36 divisors (see below), whose sum is σ = 59725512. Its totient is φ = 9407200.

The previous prime is 25872199. The next prime is 25872233. The reversal of 25872220 is 2227852.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2926 + ... + 7765.

It is an arithmetic number, because the mean of its divisors is an integer number (1659042).

Almost surely, 2^25872220 is an apocalyptic number.

25872220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25872220 is an abundant number, since it is smaller than the sum of its proper divisors (33853292).

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

25872220 is a wasteful number, since it uses less digits than its factorization.

25872220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10722 (or 10709 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 25872220 is about 5086.4742209118. The cubic root of 25872220 is about 295.7634919879.

The spelling of 25872220 in words is "twenty-five million, eight hundred seventy-two thousand, two hundred twenty".