25222604161 has 8 divisors (see below), whose sum is σ = 25248918240. Its totient is φ = 25196308032.

The previous prime is 25222604107. The next prime is 25222604179. The reversal of 25222604161 is 16140622252.

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 25222604161 - 2¹⁵ = 25222571393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25222602161) 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, 6647881 + ... + 6651673.

It is an arithmetic number, because the mean of its divisors is an integer number (3156114780).

Almost surely, 2^25222604161 is an apocalyptic number.

It is an amenable number.

25222604161 is a deficient number, since it is larger than the sum of its proper divisors (26314079).

25222604161 is a wasteful number, since it uses less digits than its factorization.

25222604161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 25222604161 in words is "twenty-five billion, two hundred twenty-two million, six hundred four thousand, one hundred sixty-one".