25255312206 has 32 divisors (see below), whose sum is σ = 51695888640. Its totient is φ = 8220973824.

The previous prime is 25255312193. The next prime is 25255312237. The reversal of 25255312206 is 60221355252.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2149215 + ... + 2160933.

It is an arithmetic number, because the mean of its divisors is an integer number (1615496520).

Almost surely, 2^25255312206 is an apocalyptic number.

25255312206 is an abundant number, since it is smaller than the sum of its proper divisors (26440576434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25255312206 is a wasteful number, since it uses less digits than its factorization.

25255312206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 25255312206 its reverse (60221355252), we get a palindrome (85476667458).

The spelling of 25255312206 in words is "twenty-five billion, two hundred fifty-five million, three hundred twelve thousand, two hundred six".