25722528 has 48 divisors (see below), whose sum is σ = 72719136. Its totient is φ = 7914240.

The previous prime is 25722517. The next prime is 25722551. The reversal of 25722528 is 82522752.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 9058 + ... + 11553.

It is an arithmetic number, because the mean of its divisors is an integer number (1514982).

Almost surely, 2^25722528 is an apocalyptic number.

It is an amenable number.

25722528 is an abundant number, since it is smaller than the sum of its proper divisors (46996608).

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

25722528 is a wasteful number, since it uses less digits than its factorization.

25722528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20637 (or 20629 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 25722528 is about 5071.7381635885. The cubic root of 25722528 is about 295.1919769267.

The spelling of 25722528 in words is "twenty-five million, seven hundred twenty-two thousand, five hundred twenty-eight".