25430133 has 4 divisors (see below), whose sum is σ = 33906848. Its totient is φ = 16953420.

The previous prime is 25430131. The next prime is 25430161. The reversal of 25430133 is 33103452.

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 not a de Polignac number, because 25430133 - 2¹ = 25430131 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 (25430131) 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, 4238353 + ... + 4238358.

It is an arithmetic number, because the mean of its divisors is an integer number (8476712).

Almost surely, 2^25430133 is an apocalyptic number.

It is an amenable number.

25430133 is a deficient number, since it is larger than the sum of its proper divisors (8476715).

25430133 is an equidigital number, since it uses as much as digits as its factorization.

25430133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476714.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 25430133 is about 5042.8298603066. The cubic root of 25430133 is about 294.0692025536.

Adding to 25430133 its reverse (33103452), we get a palindrome (58533585).

The spelling of 25430133 in words is "twenty-five million, four hundred thirty thousand, one hundred thirty-three".