15500001030 has 16 divisors (see below), whose sum is σ = 37200002544. Its totient is φ = 4133333600.

The previous prime is 15500000993. The next prime is 15500001067. The reversal of 15500001030 is 3010000551.

It is an interprime number because it is at equal distance from previous prime (15500000993) and next prime (15500001067).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258333321 + ... + 258333380.

It is an arithmetic number, because the mean of its divisors is an integer number (2325000159).

Almost surely, 2^15500001030 is an apocalyptic number.

15500001030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15500001030 is an abundant number, since it is smaller than the sum of its proper divisors (21700001514).

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

15500001030 is a wasteful number, since it uses less digits than its factorization.

15500001030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516666711.

The product of its (nonzero) digits is 75, while the sum is 15.

Adding to 15500001030 its reverse (3010000551), we get a palindrome (18510001581).

The spelling of 15500001030 in words is "fifteen billion, five hundred million, one thousand, thirty".