2504155 has 4 divisors (see below), whose sum is σ = 3004992. Its totient is φ = 2003320.

The previous prime is 2504153. The next prime is 2504167. The reversal of 2504155 is 5514052.

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

It is not a de Polignac number, because 2504155 - 2¹ = 2504153 is a prime.

It is a Smith number, since the sum of its digits (22) 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 not an unprimeable number, because it can be changed into a prime (2504153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250411 + ... + 250420.

It is an arithmetic number, because the mean of its divisors is an integer number (751248).

2^2504155 is an apocalyptic number.

2504155 is a deficient number, since it is larger than the sum of its proper divisors (500837).

2504155 is an equidigital number, since it uses as much as digits as its factorization.

2504155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500836.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2504155 is about 1582.4522109688. The cubic root of 2504155 is about 135.7960285812.

The spelling of 2504155 in words is "two million, five hundred four thousand, one hundred fifty-five".