15555550230 has 384 divisors, whose sum is σ = 48778329600. Its totient is φ = 3527193600.

The previous prime is 15555550193. The next prime is 15555550237. The reversal of 15555550230 is 3205555551.

15555550230 is a `hidden beast` number, since 1 + 55 + 55 + 550 + 2 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15555550237) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 55357690 + ... + 55357970.

It is an arithmetic number, because the mean of its divisors is an integer number (127026900).

Almost surely, 2^15555550230 is an apocalyptic number.

15555550230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15555550230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24389164800).

15555550230 is an abundant number, since it is smaller than the sum of its proper divisors (33222779370).

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

15555550230 is a wasteful number, since it uses less digits than its factorization.

15555550230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The spelling of 15555550230 in words is "fifteen billion, five hundred fifty-five million, five hundred fifty thousand, two hundred thirty".