25213044 has 24 divisors (see below), whose sum is σ = 60729088. Its totient is φ = 8133120.

The previous prime is 25213039. The next prime is 25213051. The reversal of 25213044 is 44031252.

It is a self number, because there is not a number n which added to its sum of digits gives 25213044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33517 + ... + 34260.

Almost surely, 2^25213044 is an apocalyptic number.

It is an amenable number.

25213044 is an abundant number, since it is smaller than the sum of its proper divisors (35516044).

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

25213044 is a wasteful number, since it uses less digits than its factorization.

25213044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67815 (or 67813 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 25213044 is about 5021.2592046219. The cubic root of 25213044 is about 293.2300181380.

Adding to 25213044 its reverse (44031252), we get a palindrome (69244296).

It can be divided in two parts, 2521 and 3044, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 25213044 in words is "twenty-five million, two hundred thirteen thousand, forty-four".