20453633050 has 12 divisors (see below), whose sum is σ = 38043757566. Its totient is φ = 8181453200.

The previous prime is 20453633033. The next prime is 20453633063. The reversal of 20453633050 is 5033635402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9366174841 + 11087458209 = 96779^2 + 105297^2 .

It is a super-2 number, since 2×20453633050² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204536281 + ... + 204536380.

Almost surely, 2^20453633050 is an apocalyptic number.

20453633050 is a deficient number, since it is larger than the sum of its proper divisors (17590124516).

20453633050 is a wasteful number, since it uses less digits than its factorization.

20453633050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409072673 (or 409072668 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

The spelling of 20453633050 in words is "twenty billion, four hundred fifty-three million, six hundred thirty-three thousand, fifty".