25327720 has 48 divisors (see below), whose sum is σ = 62650980. Its totient is φ = 9208320.

The previous prime is 25327667. The next prime is 25327723. The reversal of 25327720 is 2772352.

It can be written as a sum of positive squares in 2 ways, for example, as 24068836 + 1258884 = 4906^2 + 1122^2 .

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 not an unprimeable number, because it can be changed into a prime (25327723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224 + ... + 7456.

Almost surely, 2^25327720 is an apocalyptic number.

25327720 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 25327720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31325490).

25327720 is an abundant number, since it is smaller than the sum of its proper divisors (37323260).

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

25327720 is a wasteful number, since it uses less digits than its factorization.

25327720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5266 (or 5251 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 25327720 is about 5032.6652978318. The cubic root of 25327720 is about 293.6739099737.

The spelling of 25327720 in words is "twenty-five million, three hundred twenty-seven thousand, seven hundred twenty".