22202539 has 2 divisors, whose sum is σ = 22202540. Its totient is φ = 22202538.

The previous prime is 22202533. The next prime is 22202569. The reversal of 22202539 is 93520222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22202539 - 2⁹ = 22202027 is a prime.

It is not a weakly prime, because it can be changed into another prime (22202533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101269 + 11101270.

It is an arithmetic number, because the mean of its divisors is an integer number (11101270).

Almost surely, 2^22202539 is an apocalyptic number.

22202539 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202539 is an equidigital number, since it uses as much as digits as its factorization.

22202539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22202539 is about 4711.9570244220. The cubic root of 22202539 is about 281.0611898845.

The spelling of 22202539 in words is "twenty-two million, two hundred two thousand, five hundred thirty-nine".