20532270052 has 48 divisors (see below), whose sum is σ = 42415636480. Its totient is φ = 8510378400.

The previous prime is 20532270049. The next prime is 20532270151. The reversal of 20532270052 is 25007223502.

It is a super-2 number, since 2×20532270052² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20532270052.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582849 + ... + 1595767.

Almost surely, 2^20532270052 is an apocalyptic number.

It is an amenable number.

20532270052 is an abundant number, since it is smaller than the sum of its proper divisors (21883366428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20532270052 is a wasteful number, since it uses less digits than its factorization.

20532270052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14792 (or 14790 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

Adding to 20532270052 its reverse (25007223502), we get a palindrome (45539493554).

The spelling of 20532270052 in words is "twenty billion, five hundred thirty-two million, two hundred seventy thousand, fifty-two".