22450051 has 4 divisors (see below), whose sum is σ = 24176992. Its totient is φ = 20723112.

The previous prime is 22450033. The next prime is 22450061. The reversal of 22450051 is 15005422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15005422 = 2 ⋅7502711.

It is a cyclic number.

It is not a de Polignac number, because 22450051 - 2¹¹ = 22448003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22450061) 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 3 ways as a sum of consecutive naturals, for example, 863451 + ... + 863476.

It is an arithmetic number, because the mean of its divisors is an integer number (6044248).

Almost surely, 2^22450051 is an apocalyptic number.

22450051 is a deficient number, since it is larger than the sum of its proper divisors (1726941).

22450051 is a wasteful number, since it uses less digits than its factorization.

22450051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726940.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22450051 is about 4738.1484780450. The cubic root of 22450051 is about 282.1017480701.

Adding to 22450051 its reverse (15005422), we get a palindrome (37455473).

The spelling of 22450051 in words is "twenty-two million, four hundred fifty thousand, fifty-one".