20224507 has 2 divisors, whose sum is σ = 20224508. Its totient is φ = 20224506.

The previous prime is 20224483. The next prime is 20224511. The reversal of 20224507 is 70542202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20224507 - 2¹¹ = 20222459 is a prime.

It is not a weakly prime, because it can be changed into another prime (20224517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10112253 + 10112254.

It is an arithmetic number, because the mean of its divisors is an integer number (10112254).

Almost surely, 2^20224507 is an apocalyptic number.

20224507 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224507 is an equidigital number, since it uses as much as digits as its factorization.

20224507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20224507 is about 4497.1665523972. The cubic root of 20224507 is about 272.4536610035.

Adding to 20224507 its reverse (70542202), we get a palindrome (90766709).

The spelling of 20224507 in words is "twenty million, two hundred twenty-four thousand, five hundred seven".