15000055 has 16 divisors (see below), whose sum is σ = 21075264. Its totient is φ = 10033920.

The previous prime is 15000053. The next prime is 15000067. The reversal of 15000055 is 55000051.

It is not a de Polignac number, because 15000055 - 2¹ = 15000053 is a prime.

15000055 is a modest number, since divided by 55 gives 15 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3792 + ... + 6661.

It is an arithmetic number, because the mean of its divisors is an integer number (1317204).

Almost surely, 2^15000055 is an apocalyptic number.

15000055 is a deficient number, since it is larger than the sum of its proper divisors (6075209).

15000055 is a wasteful number, since it uses less digits than its factorization.

15000055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10506.

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 15000055 is about 3872.9904466704. The cubic root of 15000055 is about 246.6215088586.

The spelling of 15000055 in words is "fifteen million, fifty-five", and thus it is an aban number and an uban number.