20002547152 has 80 divisors (see below), whose sum is σ = 45740822400. Its totient is φ = 8469043968.

The previous prime is 20002547137. The next prime is 20002547153. The reversal of 20002547152 is 25174520002.

It is a super-2 number, since 2×20002547152² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 20002547152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002547153) 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, 433548 + ... + 477460.

It is an arithmetic number, because the mean of its divisors is an integer number (571760280).

Almost surely, 2^20002547152 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 20002547152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22870411200).

20002547152 is an abundant number, since it is smaller than the sum of its proper divisors (25738275248).

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

20002547152 is an equidigital number, since it uses as much as digits as its factorization.

20002547152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44025 (or 44005 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The spelling of 20002547152 in words is "twenty billion, two million, five hundred forty-seven thousand, one hundred fifty-two".