20533245210 has 48 divisors (see below), whose sum is σ = 53435805696. Its totient is φ = 5470468704.

The previous prime is 20533245191. The next prime is 20533245217. The reversal of 20533245210 is 1254233502.

It is a happy number.

20533245210 is a `hidden beast` number, since 205 + 3 + 3 + 2 + 452 + 1 + 0 = 666.

It is a super-2 number, since 2×20533245210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20533245217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7114 + ... + 202773.

It is an arithmetic number, because the mean of its divisors is an integer number (1113245952).

Almost surely, 2^20533245210 is an apocalyptic number.

20533245210 is an abundant number, since it is smaller than the sum of its proper divisors (32902560486).

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

20533245210 is a wasteful number, since it uses less digits than its factorization.

20533245210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210987 (or 210984 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20533245210 its reverse (1254233502), we get a palindrome (21787478712).

The spelling of 20533245210 in words is "twenty billion, five hundred thirty-three million, two hundred forty-five thousand, two hundred ten".