15530230030 has 24 divisors (see below), whose sum is σ = 32518401048. Its totient is φ = 5324650128.

The previous prime is 15530230019. The next prime is 15530230057. The reversal of 15530230030 is 3003203551.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15530229983 and 15530230010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15846684 + ... + 15847663.

It is an arithmetic number, because the mean of its divisors is an integer number (1354933377).

Almost surely, 2^15530230030 is an apocalyptic number.

15530230030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15530230030 is an abundant number, since it is smaller than the sum of its proper divisors (16988171018).

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

15530230030 is a wasteful number, since it uses less digits than its factorization.

15530230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31694368 (or 31694361 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 22.

Adding to 15530230030 its reverse (3003203551), we get a palindrome (18533433581).

The spelling of 15530230030 in words is "fifteen billion, five hundred thirty million, two hundred thirty thousand, thirty".