22645115253 has 6 divisors (see below), whose sum is σ = 32709610934. Its totient is φ = 15096743496.

The previous prime is 22645115239. The next prime is 22645115263. The reversal of 22645115253 is 35251154622.

22645115253 is a `hidden beast` number, since 2 + 2 + 6 + 451 + 152 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22618054449 + 27060804 = 150393^2 + 5202^2 .

It is not a de Polignac number, because 22645115253 - 2¹² = 22645111157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22645115263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1258061950 + ... + 1258061967.

Almost surely, 2^22645115253 is an apocalyptic number.

It is an amenable number.

22645115253 is a deficient number, since it is larger than the sum of its proper divisors (10064495681).

22645115253 is a wasteful number, since it uses less digits than its factorization.

22645115253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516123923 (or 2516123920 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 22645115253 its reverse (35251154622), we get a palindrome (57896269875).

The spelling of 22645115253 in words is "twenty-two billion, six hundred forty-five million, one hundred fifteen thousand, two hundred fifty-three".