25434316205 has 8 divisors (see below), whose sum is σ = 31848187392. Its totient is φ = 19462781008.

The previous prime is 25434316189. The next prime is 25434316211. The reversal of 25434316205 is 50261343452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25434316205 - 2⁴ = 25434316189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110583869 + ... + 110584098.

It is an arithmetic number, because the mean of its divisors is an integer number (3981023424).

Almost surely, 2^25434316205 is an apocalyptic number.

It is an amenable number.

25434316205 is a deficient number, since it is larger than the sum of its proper divisors (6413871187).

25434316205 is a wasteful number, since it uses less digits than its factorization.

25434316205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221167995.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 25434316205 its reverse (50261343452), we get a palindrome (75695659657).

The spelling of 25434316205 in words is "twenty-five billion, four hundred thirty-four million, three hundred sixteen thousand, two hundred five".