22507061 has 2 divisors, whose sum is σ = 22507062. Its totient is φ = 22507060.

The previous prime is 22507057. The next prime is 22507117. The reversal of 22507061 is 16070522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21446161 + 1060900 = 4631^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 22507061 - 2² = 22507057 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22507561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11253530 + 11253531.

It is an arithmetic number, because the mean of its divisors is an integer number (11253531).

Almost surely, 2^22507061 is an apocalyptic number.

It is an amenable number.

22507061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22507061 is an equidigital number, since it uses as much as digits as its factorization.

22507061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 22507061 is about 4744.1607266196. The cubic root of 22507061 is about 282.3403373774.

Adding to 22507061 its reverse (16070522), we get a palindrome (38577583).

The spelling of 22507061 in words is "twenty-two million, five hundred seven thousand, sixty-one".