22552429 has 2 divisors, whose sum is σ = 22552430. Its totient is φ = 22552428.

The previous prime is 22552423. The next prime is 22552441. The reversal of 22552429 is 92425522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19669225 + 2883204 = 4435^2 + 1698^2 .

It is a cyclic number.

It is not a de Polignac number, because 22552429 - 2⁷ = 22552301 is a prime.

It is a super-2 number, since 2×22552429² = 1017224107600082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22552429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22552423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276214 + 11276215.

It is an arithmetic number, because the mean of its divisors is an integer number (11276215).

Almost surely, 2^22552429 is an apocalyptic number.

It is an amenable number.

22552429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22552429 is an equidigital number, since it uses as much as digits as its factorization.

22552429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 22552429 is about 4748.9397764133. The cubic root of 22552429 is about 282.5299166897.

The spelling of 22552429 in words is "twenty-two million, five hundred fifty-two thousand, four hundred twenty-nine".