22750661 has 8 divisors (see below), whose sum is σ = 23133600. Its totient is φ = 22371088.

The previous prime is 22750643. The next prime is 22750667. The reversal of 22750661 is 16605722.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22750661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22750667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15230 + ... + 16656.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 2^22750661 is an apocalyptic number.

It is an amenable number.

22750661 is a deficient number, since it is larger than the sum of its proper divisors (382939).

22750661 is a wasteful number, since it uses less digits than its factorization.

22750661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 22750661 is about 4769.7652982091. The cubic root of 22750661 is about 283.3552996426.

The spelling of 22750661 in words is "twenty-two million, seven hundred fifty thousand, six hundred sixty-one".