25713732 has 48 divisors (see below), whose sum is σ = 66269952. Its totient is φ = 7694880.

The previous prime is 25713719. The next prime is 25713733. The reversal of 25713732 is 23731752.

It is a super-2 number, since 2×25713732² = 1322392026735648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25713732.

It is not an unprimeable number, because it can be changed into a prime (25713733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9783 + ... + 12129.

It is an arithmetic number, because the mean of its divisors is an integer number (1380624).

Almost surely, 2^25713732 is an apocalyptic number.

25713732 is a gapful number since it is divisible by the number (22) 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 25713732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33134976).

25713732 is an abundant number, since it is smaller than the sum of its proper divisors (40556220).

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

25713732 is a wasteful number, since it uses less digits than its factorization.

25713732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 2446 counting only the distinct ones).

The product of its digits is 8820, while the sum is 30.

The square root of 25713732 is about 5070.8709311123. The cubic root of 25713732 is about 295.1583254306.

The spelling of 25713732 in words is "twenty-five million, seven hundred thirteen thousand, seven hundred thirty-two".