22766513 has 12 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 17739480.

The previous prime is 22766509. The next prime is 22766539. The reversal of 22766513 is 31566722.

It is not a de Polignac number, because 22766513 - 2² = 22766509 is a prime.

It is a super-2 number, since 2×22766513² = 1036628228358338, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22766513.

It is not an unprimeable number, because it can be changed into a prime (22766543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12593 + ... + 14286.

It is an arithmetic number, because the mean of its divisors is an integer number (2383360).

Almost surely, 2^22766513 is an apocalyptic number.

It is an amenable number.

22766513 is a deficient number, since it is larger than the sum of its proper divisors (5833807).

22766513 is a wasteful number, since it uses less digits than its factorization.

22766513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26908 (or 26897 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 22766513 is about 4771.4267258337. The cubic root of 22766513 is about 283.4210956118.

The spelling of 22766513 in words is "twenty-two million, seven hundred sixty-six thousand, five hundred thirteen".