22245051 has 4 divisors (see below), whose sum is σ = 29660072. Its totient is φ = 14830032.

The previous prime is 22245049. The next prime is 22245077. The reversal of 22245051 is 15054222.

It is a happy number.

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

It is not a de Polignac number, because 22245051 - 2¹ = 22245049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22245031) 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, 3707506 + ... + 3707511.

It is an arithmetic number, because the mean of its divisors is an integer number (7415018).

Almost surely, 2^22245051 is an apocalyptic number.

22245051 is a deficient number, since it is larger than the sum of its proper divisors (7415021).

22245051 is an equidigital number, since it uses as much as digits as its factorization.

22245051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415020.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22245051 is about 4716.4659439033. The cubic root of 22245051 is about 281.2404615037.

Adding to 22245051 its reverse (15054222), we get a palindrome (37299273).

The spelling of 22245051 in words is "twenty-two million, two hundred forty-five thousand, fifty-one".