2250806689 has 4 divisors (see below), whose sum is σ = 2251022256. Its totient is φ = 2250591124.

The previous prime is 2250806687. The next prime is 2250806729. The reversal of 2250806689 is 9866080522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2250806689 - 2¹ = 2250806687 is a prime.

It is a super-2 number, since 2×2250806689² = 10132261502494285442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2250806687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91279 + ... + 113284.

It is an arithmetic number, because the mean of its divisors is an integer number (562755564).

Almost surely, 2^2250806689 is an apocalyptic number.

It is an amenable number.

2250806689 is a deficient number, since it is larger than the sum of its proper divisors (215567).

2250806689 is a wasteful number, since it uses less digits than its factorization.

2250806689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215566.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 2250806689 is about 47442.6673891762. The cubic root of 2250806689 is about 1310.5272801153.

The spelling of 2250806689 in words is "two billion, two hundred fifty million, eight hundred six thousand, six hundred eighty-nine".