2005531020402 has 96 divisors (see below), whose sum is σ = 5065119676800. Its totient is φ = 528931166400.

The previous prime is 2005531020397. The next prime is 2005531020403. The reversal of 2005531020402 is 2040201355002.

It is not an unprimeable number, because it can be changed into a prime (2005531020403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2535349 + ... + 3230952.

It is an arithmetic number, because the mean of its divisors is an integer number (52761663300).

Almost surely, 2^{2005531020402} is an apocalyptic number.

2005531020402 is an abundant number, since it is smaller than the sum of its proper divisors (3059588656398).

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

2005531020402 is a wasteful number, since it uses less digits than its factorization.

2005531020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766353 (or 5766326 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 2005531020402 its reverse (2040201355002), we get a palindrome (4045732375404).

The spelling of 2005531020402 in words is "two trillion, five billion, five hundred thirty-one million, twenty thousand, four hundred two".