25243572 has 72 divisors (see below), whose sum is σ = 64985760. Its totient is φ = 7616000.

The previous prime is 25243567. The next prime is 25243573. The reversal of 25243572 is 27534252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25243573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100447 + ... + 100697.

It is an arithmetic number, because the mean of its divisors is an integer number (902580).

Almost surely, 2^25243572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25243572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32492880).

25243572 is an abundant number, since it is smaller than the sum of its proper divisors (39742188).

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

25243572 is a wasteful number, since it uses less digits than its factorization.

25243572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 302 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 25243572 is about 5024.2981599423. The cubic root of 25243572 is about 293.3483182198.

The spelling of 25243572 in words is "twenty-five million, two hundred forty-three thousand, five hundred seventy-two".