2250116561 has 8 divisors (see below), whose sum is σ = 2805340224. Its totient is φ = 1753337520.

The previous prime is 2250116551. The next prime is 2250116563. The reversal of 2250116561 is 1656110522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2250116561 - 2²² = 2245922257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2250116563) 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, 14611070 + ... + 14611223.

It is an arithmetic number, because the mean of its divisors is an integer number (350667528).

Almost surely, 2^2250116561 is an apocalyptic number.

It is an amenable number.

2250116561 is a deficient number, since it is larger than the sum of its proper divisors (555223663).

2250116561 is a wasteful number, since it uses less digits than its factorization.

2250116561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29222311.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2250116561 is about 47435.3935474346. The cubic root of 2250116561 is about 1310.3933245832.

It can be divided in two parts, 2250 and 116561, that added together give a palindrome (118811).

The spelling of 2250116561 in words is "two billion, two hundred fifty million, one hundred sixteen thousand, five hundred sixty-one".