25534345 has 4 divisors (see below), whose sum is σ = 30641220. Its totient is φ = 20427472.

The previous prime is 25534339. The next prime is 25534351. The reversal of 25534345 is 54343552.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (25534339) and next prime (25534351).

It can be written as a sum of positive squares in 2 ways, for example, as 4447881 + 21086464 = 2109^2 + 4592^2 .

It is a cyclic number.

It is not a de Polignac number, because 25534345 - 2³ = 25534337 is a prime.

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, 2553430 + ... + 2553439.

It is an arithmetic number, because the mean of its divisors is an integer number (7660305).

Almost surely, 2^25534345 is an apocalyptic number.

It is an amenable number.

25534345 is a deficient number, since it is larger than the sum of its proper divisors (5106875).

25534345 is an equidigital number, since it uses as much as digits as its factorization.

25534345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106874.

The product of its digits is 36000, while the sum is 31.

The square root of 25534345 is about 5053.1519866317. The cubic root of 25534345 is about 294.4703509766.

Adding to 25534345 its reverse (54343552), we get a palindrome (79877897).

The spelling of 25534345 in words is "twenty-five million, five hundred thirty-four thousand, three hundred forty-five".