22515043 has 2 divisors, whose sum is σ = 22515044. Its totient is φ = 22515042.

The previous prime is 22515013. The next prime is 22515121. The reversal of 22515043 is 34051522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22515043 - 2⁵ = 22515011 is a prime.

It is a super-2 number, since 2×22515043² = 1013854322583698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22515013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11257521 + 11257522.

It is an arithmetic number, because the mean of its divisors is an integer number (11257522).

Almost surely, 2^22515043 is an apocalyptic number.

22515043 is a deficient number, since it is larger than the sum of its proper divisors (1).

22515043 is an equidigital number, since it uses as much as digits as its factorization.

22515043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22515043 is about 4745.0018967330. The cubic root of 22515043 is about 282.3737102259.

Adding to 22515043 its reverse (34051522), we get a palindrome (56566565).

The spelling of 22515043 in words is "twenty-two million, five hundred fifteen thousand, forty-three".