20050405002 has 48 divisors (see below), whose sum is σ = 44034637920. Its totient is φ = 6592993056.

The previous prime is 20050404991. The next prime is 20050405019.

20050405002 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367293 + ... + 418335.

It is an arithmetic number, because the mean of its divisors is an integer number (917388290).

Almost surely, 2^20050405002 is an apocalyptic number.

20050405002 is an abundant number, since it is smaller than the sum of its proper divisors (23984232918).

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

20050405002 is a wasteful number, since it uses less digits than its factorization.

20050405002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51347 (or 51344 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The spelling of 20050405002 in words is "twenty billion, fifty million, four hundred five thousand, two".