20552412032 has 64 divisors (see below), whose sum is σ = 41850224640. Its totient is φ = 10051130880.

The previous prime is 20552411993. The next prime is 20552412047. The reversal of 20552412032 is 23021425502.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 20552411992 and 20552412010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145273 + ... + 1163079.

It is an arithmetic number, because the mean of its divisors is an integer number (653909760).

Almost surely, 2^20552412032 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 20552412032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20925112320).

20552412032 is an abundant number, since it is smaller than the sum of its proper divisors (21297812608).

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

20552412032 is a wasteful number, since it uses less digits than its factorization.

20552412032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18019 (or 18007 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 20552412032 its reverse (23021425502), we get a palindrome (43573837534).

The spelling of 20552412032 in words is "twenty billion, five hundred fifty-two million, four hundred twelve thousand, thirty-two".