2506819 has 8 divisors (see below), whose sum is σ = 2884448. Its totient is φ = 2134080.

The previous prime is 2506813. The next prime is 2506831. The reversal of 2506819 is 9186052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506819 - 2¹⁵ = 2474051 is a prime.

It is a super-2 number, since 2×2506819² = 12568282997522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2506813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 2239.

It is an arithmetic number, because the mean of its divisors is an integer number (360556).

2^2506819 is an apocalyptic number.

2506819 is a deficient number, since it is larger than the sum of its proper divisors (377629).

2506819 is a wasteful number, since it uses less digits than its factorization.

2506819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2506819 is about 1583.2937188027. The cubic root of 2506819 is about 135.8441662314.

The spelling of 2506819 in words is "two million, five hundred six thousand, eight hundred nineteen".