22025051 has 4 divisors (see below), whose sum is σ = 22440672. Its totient is φ = 21609432.

The previous prime is 22025039. The next prime is 22025057. The reversal of 22025051 is 15052022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15052022 = 2 ⋅7526011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22025051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22025057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207731 + ... + 207836.

It is an arithmetic number, because the mean of its divisors is an integer number (5610168).

Almost surely, 2^22025051 is an apocalyptic number.

22025051 is a deficient number, since it is larger than the sum of its proper divisors (415621).

22025051 is an equidigital number, since it uses as much as digits as its factorization.

22025051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415620.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 22025051 is about 4693.0854456317. The cubic root of 22025051 is about 280.3102470978.

Adding to 22025051 its reverse (15052022), we get a palindrome (37077073).

The spelling of 22025051 in words is "twenty-two million, twenty-five thousand, fifty-one".