15505000055 has 8 divisors (see below), whose sum is σ = 18687966192. Its totient is φ = 12349355968.

The previous prime is 15505000019. The next prime is 15505000061. The reversal of 15505000055 is 55000050551.

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

It is a cyclic number.

It is not a de Polignac number, because 15505000055 - 2¹⁶ = 15504934519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15504999988 and 15505000033.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6829262 + ... + 6831531.

It is an arithmetic number, because the mean of its divisors is an integer number (2335995774).

Almost surely, 2^15505000055 is an apocalyptic number.

15505000055 is a deficient number, since it is larger than the sum of its proper divisors (3182966137).

15505000055 is a wasteful number, since it uses less digits than its factorization.

15505000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13661025.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 15505000055 in words is "fifteen billion, five hundred five million, fifty-five", and thus it is an aban number.