20275706452 has 6 divisors (see below), whose sum is σ = 35482486298. Its totient is φ = 10137853224.

The previous prime is 20275706413. The next prime is 20275706453. The reversal of 20275706452 is 25460757202.

It can be written as a sum of positive squares in only one way, i.e., 17666131396 + 2609575056 = 132914^2 + 51084^2 .

It is a super-2 number, since 2×20275706452² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20275706453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2534463303 + ... + 2534463310.

Almost surely, 2^20275706452 is an apocalyptic number.

It is an amenable number.

20275706452 is a deficient number, since it is larger than the sum of its proper divisors (15206779846).

20275706452 is a wasteful number, since it uses less digits than its factorization.

20275706452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5068926617 (or 5068926615 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 20275706452 in words is "twenty billion, two hundred seventy-five million, seven hundred six thousand, four hundred fifty-two".