25628433 has 4 divisors (see below), whose sum is σ = 34171248. Its totient is φ = 17085620.

The previous prime is 25628429. The next prime is 25628441. The reversal of 25628433 is 33482652.

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 25628433 - 2² = 25628429 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25628394 and 25628403.

It is not an unprimeable number, because it can be changed into a prime (25628483) 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 3 ways as a sum of consecutive naturals, for example, 4271403 + ... + 4271408.

It is an arithmetic number, because the mean of its divisors is an integer number (8542812).

Almost surely, 2^25628433 is an apocalyptic number.

It is an amenable number.

25628433 is a deficient number, since it is larger than the sum of its proper divisors (8542815).

25628433 is an equidigital number, since it uses as much as digits as its factorization.

25628433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542814.

The product of its digits is 34560, while the sum is 33.

The square root of 25628433 is about 5062.4532590435. The cubic root of 25628433 is about 294.8315920908.

The spelling of 25628433 in words is "twenty-five million, six hundred twenty-eight thousand, four hundred thirty-three".