25220323255 has 8 divisors (see below), whose sum is σ = 30265474032. Its totient is φ = 20175534528.

The previous prime is 25220323253. The next prime is 25220323273. The reversal of 25220323255 is 55232302252.

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 25220323255 - 2¹ = 25220323253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25220323253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98707 + ... + 245323.

It is an arithmetic number, because the mean of its divisors is an integer number (3783184254).

Almost surely, 2^25220323255 is an apocalyptic number.

25220323255 is a deficient number, since it is larger than the sum of its proper divisors (5045150777).

25220323255 is a wasteful number, since it uses less digits than its factorization.

25220323255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181025.

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

The spelling of 25220323255 in words is "twenty-five billion, two hundred twenty million, three hundred twenty-three thousand, two hundred fifty-five".