2505822 has 16 divisors (see below), whose sum is σ = 5467392. Its totient is φ = 759320.

The previous prime is 2505809. The next prime is 2505829. The reversal of 2505822 is 2285052.

It is a d-powerful number, because it can be written as 2¹⁰ + 5³ + 0 + 5⁸ + 8³ + 2¹⁴ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 2505792 and 2505801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505829) 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, 18918 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (341712).

2^2505822 is an apocalyptic number.

2505822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2505822 is an abundant number, since it is smaller than the sum of its proper divisors (2961570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505822 is a wasteful number, since it uses less digits than its factorization.

2505822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37983.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2505822 is about 1582.9788375086. The cubic root of 2505822 is about 135.8261547471.

The spelling of 2505822 in words is "two million, five hundred five thousand, eight hundred twenty-two".