25620260 has 48 divisors (see below), whose sum is σ = 56888832. Its totient is φ = 9686880.

The previous prime is 25620239. The next prime is 25620263. The reversal of 25620260 is 6202652.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25620263) 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 15 ways as a sum of consecutive naturals, for example, 595799 + ... + 595841.

It is an arithmetic number, because the mean of its divisors is an integer number (1185184).

Almost surely, 2^25620260 is an apocalyptic number.

25620260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25620260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28444416).

25620260 is an abundant number, since it is smaller than the sum of its proper divisors (31268572).

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

25620260 is an equidigital number, since it uses as much as digits as its factorization.

25620260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 25620260 is about 5061.6459773477. The cubic root of 25620260 is about 294.8002478048.

The spelling of 25620260 in words is "twenty-five million, six hundred twenty thousand, two hundred sixty".