22057507 has 2 divisors, whose sum is σ = 22057508. Its totient is φ = 22057506.

The previous prime is 22057489. The next prime is 22057531. The reversal of 22057507 is 70575022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22057507 - 2¹⁹ = 21533219 is a prime.

It is not a weakly prime, because it can be changed into another prime (22007507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11028753 + 11028754.

It is an arithmetic number, because the mean of its divisors is an integer number (11028754).

Almost surely, 2^22057507 is an apocalyptic number.

22057507 is a deficient number, since it is larger than the sum of its proper divisors (1).

22057507 is an equidigital number, since it uses as much as digits as its factorization.

22057507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 22057507 is about 4696.5420257888. The cubic root of 22057507 is about 280.4478674259.

The spelling of 22057507 in words is "twenty-two million, fifty-seven thousand, five hundred seven".