20725960 has 32 divisors (see below), whose sum is σ = 49089600. Its totient is φ = 7853760.

The previous prime is 20725931. The next prime is 20725961. The reversal of 20725960 is 6952702.

It is not an unprimeable number, because it can be changed into a prime (20725961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12876 + ... + 14395.

It is an arithmetic number, because the mean of its divisors is an integer number (1534050).

Almost surely, 2^20725960 is an apocalyptic number.

20725960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20725960 is an abundant number, since it is smaller than the sum of its proper divisors (28363640).

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

20725960 is a wasteful number, since it uses less digits than its factorization.

20725960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27301 (or 27297 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20725960 is about 4552.5772920402. The cubic root of 20725960 is about 274.6870710431.

The spelling of 20725960 in words is "twenty million, seven hundred twenty-five thousand, nine hundred sixty".