2540526 has 24 divisors (see below), whose sum is σ = 5224680. Its totient is φ = 823536.

The previous prime is 2540519. The next prime is 2540533. The reversal of 2540526 is 6250452.

It is an interprime number because it is at equal distance from previous prime (2540519) and next prime (2540533).

It is a junction number, because it is equal to n+sod(n) for n = 2540496 and 2540505.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10980 + ... + 11208.

It is an arithmetic number, because the mean of its divisors is an integer number (217695).

2^2540526 is an apocalyptic number.

2540526 is an abundant number, since it is smaller than the sum of its proper divisors (2684154).

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

2540526 is a wasteful number, since it uses less digits than its factorization.

2540526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2540526 is about 1593.9027573852. The cubic root of 2540526 is about 136.4503166875.

Adding to 2540526 its reverse (6250452), we get a palindrome (8790978).

The spelling of 2540526 in words is "two million, five hundred forty thousand, five hundred twenty-six".