25253133 has 4 divisors (see below), whose sum is σ = 33670848. Its totient is φ = 16835420.

The previous prime is 25253117. The next prime is 25253159. The reversal of 25253133 is 33135252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25253133 - 2⁴ = 25253117 is a prime.

It is a super-3 number, since 3×25253133³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25253633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208853 + ... + 4208858.

It is an arithmetic number, because the mean of its divisors is an integer number (8417712).

Almost surely, 2^25253133 is an apocalyptic number.

It is an amenable number.

25253133 is a deficient number, since it is larger than the sum of its proper divisors (8417715).

25253133 is an equidigital number, since it uses as much as digits as its factorization.

25253133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417714.

The product of its digits is 2700, while the sum is 24.

The square root of 25253133 is about 5025.2495460425. The cubic root of 25253133 is about 293.3853487590.

Adding to 25253133 its reverse (33135252), we get a palindrome (58388385).

The spelling of 25253133 in words is "twenty-five million, two hundred fifty-three thousand, one hundred thirty-three".