22502429 has 2 divisors, whose sum is σ = 22502430. Its totient is φ = 22502428.

The previous prime is 22502413. The next prime is 22502437. The reversal of 22502429 is 92420522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20457529 + 2044900 = 4523^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 22502429 - 2⁴ = 22502413 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22502398 and 22502407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22502489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251214 + 11251215.

It is an arithmetic number, because the mean of its divisors is an integer number (11251215).

Almost surely, 2^22502429 is an apocalyptic number.

It is an amenable number.

22502429 is a deficient number, since it is larger than the sum of its proper divisors (1).

22502429 is an equidigital number, since it uses as much as digits as its factorization.

22502429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22502429 is about 4743.6725224239. The cubic root of 22502429 is about 282.3209673055.

The spelling of 22502429 in words is "twenty-two million, five hundred two thousand, four hundred twenty-nine".