20520232532052 has 36 divisors (see below), whose sum is σ = 52629026139648. Its totient is φ = 6218252282000.

The previous prime is 20520232531987. The next prime is 20520232532083. The reversal of 20520232532052 is 25023523202502.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7066194324 + ... + 7066197227.

It is an arithmetic number, because the mean of its divisors is an integer number (1461917392768).

Almost surely, 2^{20520232532052} is an apocalyptic number.

20520232532052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20520232532052 is an abundant number, since it is smaller than the sum of its proper divisors (32108793607596).

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

20520232532052 is a wasteful number, since it uses less digits than its factorization.

20520232532052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14132391580 (or 14132391567 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 20520232532052 its reverse (25023523202502), we get a palindrome (45543755734554).

The spelling of 20520232532052 in words is "twenty trillion, five hundred twenty billion, two hundred thirty-two million, five hundred thirty-two thousand, fifty-two".