15384055 has 4 divisors (see below), whose sum is σ = 18460872. Its totient is φ = 12307240.

The previous prime is 15384049. The next prime is 15384059. The reversal of 15384055 is 55048351.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 15384055 - 2⁵ = 15384023 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15384059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538401 + ... + 1538410.

It is an arithmetic number, because the mean of its divisors is an integer number (4615218).

Almost surely, 2^15384055 is an apocalyptic number.

15384055 is a deficient number, since it is larger than the sum of its proper divisors (3076817).

15384055 is an equidigital number, since it uses as much as digits as its factorization.

15384055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076816.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 15384055 is about 3922.2512668109. The cubic root of 15384055 is about 248.7082975131.

The spelling of 15384055 in words is "fifteen million, three hundred eighty-four thousand, fifty-five".