15055005550 has 24 divisors (see below), whose sum is σ = 30156335496. Its totient is φ = 5558771040.

The previous prime is 15055005533. The next prime is 15055005583. The reversal of 15055005550 is 5550055051.

15055005550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15055005550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11580124 + ... + 11581423.

It is an arithmetic number, because the mean of its divisors is an integer number (1256513979).

Almost surely, 2^15055005550 is an apocalyptic number.

15055005550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15055005550 is an abundant number, since it is smaller than the sum of its proper divisors (15101329946).

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

15055005550 is a wasteful number, since it uses less digits than its factorization.

15055005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23161572 (or 23161567 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 15055005550 in words is "fifteen billion, fifty-five million, five thousand, five hundred fifty".