2566422650 has 24 divisors (see below), whose sum is σ = 5207505984. Its totient is φ = 933244400.

The previous prime is 2566422647. The next prime is 2566422653. The reversal of 2566422650 is 562246652.

It is an interprime number because it is at equal distance from previous prime (2566422647) and next prime (2566422653).

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2566422653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2332562 + ... + 2333661.

It is an arithmetic number, because the mean of its divisors is an integer number (216979416).

Almost surely, 2^2566422650 is an apocalyptic number.

2566422650 is an abundant number, since it is smaller than the sum of its proper divisors (2641083334).

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

2566422650 is a wasteful number, since it uses less digits than its factorization.

2566422650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4666246 (or 4666241 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The square root of 2566422650 is about 50659.8721869687. The cubic root of 2566422650 is about 1369.1238203889.

The spelling of 2566422650 in words is "two billion, five hundred sixty-six million, four hundred twenty-two thousand, six hundred fifty".