20533130502 has 16 divisors (see below), whose sum is σ = 43481923632. Its totient is φ = 6441766400.

The previous prime is 20533130369. The next prime is 20533130503. The reversal of 20533130502 is 20503133502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533130503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100652499 + ... + 100652702.

It is an arithmetic number, because the mean of its divisors is an integer number (2717620227).

Almost surely, 2^20533130502 is an apocalyptic number.

20533130502 is an abundant number, since it is smaller than the sum of its proper divisors (22948793130).

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

20533130502 is a wasteful number, since it uses less digits than its factorization.

20533130502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201305223.

The product of its (nonzero) digits is 2700, while the sum is 24.

The spelling of 20533130502 in words is "twenty billion, five hundred thirty-three million, one hundred thirty thousand, five hundred two".