22850561 has 4 divisors (see below), whose sum is σ = 22933332. Its totient is φ = 22767792.

The previous prime is 22850549. The next prime is 22850591. The reversal of 22850561 is 16505822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1874161 + 20976400 = 1369^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 22850561 - 2¹⁰ = 22849537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22850591) 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, 40970 + ... + 41523.

It is an arithmetic number, because the mean of its divisors is an integer number (5733333).

Almost surely, 2^22850561 is an apocalyptic number.

It is an amenable number.

22850561 is a deficient number, since it is larger than the sum of its proper divisors (82771).

22850561 is an equidigital number, since it uses as much as digits as its factorization.

22850561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82770.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 22850561 is about 4780.2260406805. The cubic root of 22850561 is about 283.7694394362.

The spelling of 22850561 in words is "twenty-two million, eight hundred fifty thousand, five hundred sixty-one".