25927740 has 72 divisors (see below), whose sum is σ = 81375840. Its totient is φ = 6674304.

The previous prime is 25927717. The next prime is 25927751. The reversal of 25927740 is 4772952.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 25927695 and 25927704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2737 + ... + 7703.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^25927740 is an apocalyptic number.

25927740 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 25927740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40687920).

25927740 is an abundant number, since it is smaller than the sum of its proper divisors (55448100).

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

25927740 is a wasteful number, since it uses less digits than its factorization.

25927740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011 (or 5006 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 25927740 is about 5091.9289075948. The cubic root of 25927740 is about 295.9749035211.

The spelling of 25927740 in words is "twenty-five million, nine hundred twenty-seven thousand, seven hundred forty".