2505019 has 4 divisors (see below), whose sum is σ = 2732760. Its totient is φ = 2277280.

The previous prime is 2505007. The next prime is 2505043. The reversal of 2505019 is 9105052.

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

It is a cyclic number.

It is not a de Polignac number, because 2505019 - 2⁵ = 2504987 is a prime.

It is a super-2 number, since 2×2505019² = 12550240380722, which contains 22 as substring.

It is a Duffinian number.

2505019 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2505119) 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, 113854 + ... + 113875.

It is an arithmetic number, because the mean of its divisors is an integer number (683190).

2^2505019 is an apocalyptic number.

2505019 is a deficient number, since it is larger than the sum of its proper divisors (227741).

2505019 is a wasteful number, since it uses less digits than its factorization.

2505019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227740.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2505019 is about 1582.7251814513. The cubic root of 2505019 is about 135.8116445312.

The spelling of 2505019 in words is "two million, five hundred five thousand, nineteen".