25133530 has 8 divisors (see below), whose sum is σ = 45240372. Its totient is φ = 10053408.

The previous prime is 25133527. The next prime is 25133539. The reversal of 25133530 is 3533152.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25110121 + 23409 = 5011^2 + 153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25133539) 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, 1256667 + ... + 1256686.

Almost surely, 2^25133530 is an apocalyptic number.

25133530 is a deficient number, since it is larger than the sum of its proper divisors (20106842).

25133530 is a wasteful number, since it uses less digits than its factorization.

25133530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513360.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 25133530 is about 5013.3352171982. The cubic root of 25133530 is about 292.9214418177.

Adding to 25133530 its reverse (3533152), we get a palindrome (28666682).

The spelling of 25133530 in words is "twenty-five million, one hundred thirty-three thousand, five hundred thirty".