20532003552 has 96 divisors (see below), whose sum is σ = 59966645760. Its totient is φ = 6834672000.

The previous prime is 20532003551. The next prime is 20532003553. The reversal of 20532003552 is 25530023502.

It is an interprime number because it is at equal distance from previous prime (20532003551) and next prime (20532003553).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532003551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633043 + ... + 664685.

It is an arithmetic number, because the mean of its divisors is an integer number (624652560).

Almost surely, 2^20532003552 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 20532003552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29983322880).

20532003552 is an abundant number, since it is smaller than the sum of its proper divisors (39434642208).

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

20532003552 is a wasteful number, since it uses less digits than its factorization.

20532003552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32413 (or 32399 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The spelling of 20532003552 in words is "twenty billion, five hundred thirty-two million, three thousand, five hundred fifty-two".