20030432515 has 8 divisors (see below), whose sum is σ = 24220004688. Its totient is φ = 15902022240.

The previous prime is 20030432497. The next prime is 20030432519. The reversal of 20030432515 is 51523403002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20030432515 - 2¹⁵ = 20030399747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20030432515.

It is not an unprimeable number, because it can be changed into a prime (20030432519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15289752 + ... + 15291061.

It is an arithmetic number, because the mean of its divisors is an integer number (3027500586).

Almost surely, 2^20030432515 is an apocalyptic number.

20030432515 is a deficient number, since it is larger than the sum of its proper divisors (4189572173).

20030432515 is a wasteful number, since it uses less digits than its factorization.

20030432515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30580949.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20030432515 its reverse (51523403002), we get a palindrome (71553835517).

The spelling of 20030432515 in words is "twenty billion, thirty million, four hundred thirty-two thousand, five hundred fifteen".