2505843 has 8 divisors (see below), whose sum is σ = 3712400. Its totient is φ = 1670544.

The previous prime is 2505829. The next prime is 2505847. The reversal of 2505843 is 3485052.

It is not a de Polignac number, because 2505843 - 2⁶ = 2505779 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 92809 = 2505843 / (2 + 5 + 0 + 5 + 8 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46378 + ... + 46431.

It is an arithmetic number, because the mean of its divisors is an integer number (464050).

2^2505843 is an apocalyptic number.

2505843 is a deficient number, since it is larger than the sum of its proper divisors (1206557).

2505843 is an equidigital number, since it uses as much as digits as its factorization.

2505843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92818 (or 92812 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2505843 is about 1582.9854705587. The cubic root of 2505843 is about 135.8265341757.

The spelling of 2505843 in words is "two million, five hundred five thousand, eight hundred forty-three".