21532004050 has 12 divisors (see below), whose sum is σ = 40049527626. Its totient is φ = 8612801600.

The previous prime is 21532003951. The next prime is 21532004057. The reversal of 21532004050 is 5040023512.

21532004050 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 16288651129 + 5243352921 = 127627^2 + 72411^2 .

It is not an unprimeable number, because it can be changed into a prime (21532004057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215319991 + ... + 215320090.

Almost surely, 2^21532004050 is an apocalyptic number.

21532004050 is a deficient number, since it is larger than the sum of its proper divisors (18517523576).

21532004050 is a wasteful number, since it uses less digits than its factorization.

21532004050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430640093 (or 430640088 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 21532004050 its reverse (5040023512), we get a palindrome (26572027562).

The spelling of 21532004050 in words is "twenty-one billion, five hundred thirty-two million, four thousand, fifty".