25002232266 has 64 divisors (see below), whose sum is σ = 55981094400. Its totient is φ = 7378741440.

The previous prime is 25002232261. The next prime is 25002232267. The reversal of 25002232266 is 66223220052.

It is a super-2 number, since 2×25002232266² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25002232261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 977841 + ... + 1003083.

It is an arithmetic number, because the mean of its divisors is an integer number (874704600).

Almost surely, 2^25002232266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25002232266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27990547200).

25002232266 is an abundant number, since it is smaller than the sum of its proper divisors (30978862134).

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

25002232266 is a wasteful number, since it uses less digits than its factorization.

25002232266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25651.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 25002232266 in words is "twenty-five billion, two million, two hundred thirty-two thousand, two hundred sixty-six".