22051529 has 2 divisors, whose sum is σ = 22051530. Its totient is φ = 22051528.

The previous prime is 22051511. The next prime is 22051531. The reversal of 22051529 is 92515022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14478025 + 7573504 = 3805^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 22051529 - 2²⁰ = 21002953 is a prime.

Together with 22051531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22051498 and 22051507.

It is not a weakly prime, because it can be changed into another prime (22851529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025764 + 11025765.

It is an arithmetic number, because the mean of its divisors is an integer number (11025765).

Almost surely, 2^22051529 is an apocalyptic number.

It is an amenable number.

22051529 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051529 is an equidigital number, since it uses as much as digits as its factorization.

22051529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 22051529 is about 4695.9055569719. The cubic root of 22051529 is about 280.4225295847.

The spelling of 22051529 in words is "twenty-two million, fifty-one thousand, five hundred twenty-nine".