20136530052 has 72 divisors (see below), whose sum is σ = 51092280512. Its totient is φ = 6686971200.

The previous prime is 20136529997. The next prime is 20136530059. The reversal of 20136530052 is 25003563102.

20136530052 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 653 + 0 + 0 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20136529998 and 20136530025.

It is not an unprimeable number, because it can be changed into a prime (20136530059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17195427 + ... + 17196597.

Almost surely, 2^20136530052 is an apocalyptic number.

It is an amenable number.

20136530052 is an abundant number, since it is smaller than the sum of its proper divisors (30955750460).

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

20136530052 is a wasteful number, since it uses less digits than its factorization.

20136530052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The spelling of 20136530052 in words is "twenty billion, one hundred thirty-six million, five hundred thirty thousand, fifty-two".