63224591 has 2 divisors, whose sum is σ = 63224592. Its totient is φ = 63224590.

The previous prime is 63224587. The next prime is 63224633. The reversal of 63224591 is 19542236.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63224591 - 2² = 63224587 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63224521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31612295 + 31612296.

It is an arithmetic number, because the mean of its divisors is an integer number (31612296).

Almost surely, 2^63224591 is an apocalyptic number.

63224591 is a deficient number, since it is larger than the sum of its proper divisors (1).

63224591 is an equidigital number, since it uses as much as digits as its factorization.

63224591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 63224591 is about 7951.3892496846. The cubic root of 63224591 is about 398.3779962330.

The spelling of 63224591 in words is "sixty-three million, two hundred twenty-four thousand, five hundred ninety-one".