22487147522 has 24 divisors (see below), whose sum is σ = 39244229820. Its totient is φ = 9635764320.

The previous prime is 22487147521. The next prime is 22487147569. The reversal of 22487147522 is 22574178422.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22008019201 + 479128321 = 148351^2 + 21889^2 .

It is not an unprimeable number, because it can be changed into a prime (22487147521) 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, 731804 + ... + 761912.

Almost surely, 2^22487147522 is an apocalyptic number.

22487147522 is a deficient number, since it is larger than the sum of its proper divisors (16757082298).

22487147522 is a wasteful number, since it uses less digits than its factorization.

22487147522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37746 (or 37739 counting only the distinct ones).

The product of its digits is 501760, while the sum is 44.

The spelling of 22487147522 in words is "twenty-two billion, four hundred eighty-seven million, one hundred forty-seven thousand, five hundred twenty-two".