25525044 has 30 divisors (see below), whose sum is σ = 66728354. Its totient is φ = 8508240.

The previous prime is 25525043. The next prime is 25525051. The reversal of 25525044 is 44052552.

It can be written as a sum of positive squares in only one way, i.e., 17740944 + 7784100 = 4212^2 + 2790^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 25524999 and 25525017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39067 + ... + 39714.

Almost surely, 2^25525044 is an apocalyptic number.

It is an amenable number.

25525044 is an abundant number, since it is smaller than the sum of its proper divisors (41203310).

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

25525044 is a wasteful number, since it uses less digits than its factorization.

25525044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78797 (or 78786 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 25525044 is about 5052.2315861409. The cubic root of 25525044 is about 294.4345925847.

Adding to 25525044 its reverse (44052552), we get a palindrome (69577596).

The spelling of 25525044 in words is "twenty-five million, five hundred twenty-five thousand, forty-four".