21550486322 has 32 divisors (see below), whose sum is σ = 35521124400. Its totient is φ = 9760278528.

The previous prime is 21550486319. The next prime is 21550486327. The reversal of 21550486322 is 22368405512.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1440126601 + 20110359721 = 37949^2 + 141811^2 .

It is not an unprimeable number, because it can be changed into a prime (21550486327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273704 + ... + 343532.

Almost surely, 2^21550486322 is an apocalyptic number.

21550486322 is a deficient number, since it is larger than the sum of its proper divisors (13970638078).

21550486322 is a wasteful number, since it uses less digits than its factorization.

21550486322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70190.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 21550486322 in words is "twenty-one billion, five hundred fifty million, four hundred eighty-six thousand, three hundred twenty-two".