25432045 has 4 divisors (see below), whose sum is σ = 30518460. Its totient is φ = 20345632.

The previous prime is 25432031. The next prime is 25432087. The reversal of 25432045 is 54023452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9223369 + 16208676 = 3037^2 + 4026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25432045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543200 + ... + 2543209.

It is an arithmetic number, because the mean of its divisors is an integer number (7629615).

Almost surely, 2^25432045 is an apocalyptic number.

It is an amenable number.

25432045 is a deficient number, since it is larger than the sum of its proper divisors (5086415).

25432045 is an equidigital number, since it uses as much as digits as its factorization.

25432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086414.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 25432045 is about 5043.0194328398. The cubic root of 25432045 is about 294.0765723699.

Adding to 25432045 its reverse (54023452), we get a palindrome (79455497).

The spelling of 25432045 in words is "twenty-five million, four hundred thirty-two thousand, forty-five".