22755647 has 2 divisors, whose sum is σ = 22755648. Its totient is φ = 22755646.

The previous prime is 22755619. The next prime is 22755659. The reversal of 22755647 is 74655722.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22755647 - 2¹⁰ = 22754623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22755647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22751647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11377823 + 11377824.

It is an arithmetic number, because the mean of its divisors is an integer number (11377824).

Almost surely, 2^22755647 is an apocalyptic number.

22755647 is a deficient number, since it is larger than the sum of its proper divisors (1).

22755647 is an equidigital number, since it uses as much as digits as its factorization.

22755647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 38.

The square root of 22755647 is about 4770.2879368021. The cubic root of 22755647 is about 283.3759980350.

The spelling of 22755647 in words is "twenty-two million, seven hundred fifty-five thousand, six hundred forty-seven".