25213133 has 16 divisors (see below), whose sum is σ = 29221440. Its totient is φ = 21692880.

The previous prime is 25213127. The next prime is 25213141. The reversal of 25213133 is 33131252.

It is not a de Polignac number, because 25213133 - 2¹⁴ = 25196749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25213033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24791 + ... + 25787.

It is an arithmetic number, because the mean of its divisors is an integer number (1826340).

Almost surely, 2^25213133 is an apocalyptic number.

It is an amenable number.

25213133 is a deficient number, since it is larger than the sum of its proper divisors (4008307).

25213133 is an equidigital number, since it uses as much as digits as its factorization.

25213133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1027 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 25213133 is about 5021.2680669329. The cubic root of 25213133 is about 293.2303631637.

Adding to 25213133 its reverse (33131252), we get a palindrome (58344385).

The spelling of 25213133 in words is "twenty-five million, two hundred thirteen thousand, one hundred thirty-three".