15538055 has 16 divisors (see below), whose sum is σ = 20774880. Its totient is φ = 11077248.

The previous prime is 15538049. The next prime is 15538079. The reversal of 15538055 is 55083551.

It is not a de Polignac number, because 15538055 - 2¹⁶ = 15472519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2237 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (1298430).

Almost surely, 2^15538055 is an apocalyptic number.

15538055 is a deficient number, since it is larger than the sum of its proper divisors (5236825).

15538055 is a wasteful number, since it uses less digits than its factorization.

15538055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8290.

The product of its (nonzero) digits is 15000, while the sum is 32.

The square root of 15538055 is about 3941.8339640325. The cubic root of 15538055 is about 249.5354305691.

The spelling of 15538055 in words is "fifteen million, five hundred thirty-eight thousand, fifty-five".