25327410634 has 4 divisors (see below), whose sum is σ = 37991115954. Its totient is φ = 12663705316.

The previous prime is 25327410631. The next prime is 25327410677. The reversal of 25327410634 is 43601472352.

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

It can be written as a sum of positive squares in only one way, i.e., 20264376609 + 5063034025 = 142353^2 + 71155^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25327410593 and 25327410602.

It is not an unprimeable number, because it can be changed into a prime (25327410631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331852657 + ... + 6331852660.

Almost surely, 2^25327410634 is an apocalyptic number.

25327410634 is a deficient number, since it is larger than the sum of its proper divisors (12663705320).

25327410634 is a wasteful number, since it uses less digits than its factorization.

25327410634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663705319.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 25327410634 its reverse (43601472352), we get a palindrome (68928882986).

The spelling of 25327410634 in words is "twenty-five billion, three hundred twenty-seven million, four hundred ten thousand, six hundred thirty-four".