20550505412532 has 192 divisors, whose sum is σ = 51908605056000. Its totient is φ = 6306859625472.

The previous prime is 20550505412461. The next prime is 20550505412587. The reversal of 20550505412532 is 23521450505502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6665747863 + ... + 6665750945.

It is an arithmetic number, because the mean of its divisors is an integer number (270357318000).

Almost surely, 2^{20550505412532} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20550505412532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25954302528000).

20550505412532 is an abundant number, since it is smaller than the sum of its proper divisors (31358099643468).

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

20550505412532 is a wasteful number, since it uses less digits than its factorization.

20550505412532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6350 (or 6348 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 20550505412532 in words is "twenty trillion, five hundred fifty billion, five hundred five million, four hundred twelve thousand, five hundred thirty-two".