2523522 has 16 divisors (see below), whose sum is σ = 5221440. Its totient is φ = 812112.

The previous prime is 2523517. The next prime is 2523527. The reversal of 2523522 is 2253252.

It is an interprime number because it is at equal distance from previous prime (2523517) and next prime (2523527).

It is not an unprimeable number, because it can be changed into a prime (2523527) 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, 7078 + ... + 7425.

It is an arithmetic number, because the mean of its divisors is an integer number (326340).

2^2523522 is an apocalyptic number.

2523522 is an abundant number, since it is smaller than the sum of its proper divisors (2697918).

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

2523522 is a wasteful number, since it uses less digits than its factorization.

2523522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14537.

The product of its digits is 1200, while the sum is 21.

The square root of 2523522 is about 1588.5597250340. The cubic root of 2523522 is about 136.1452096654.

Adding to 2523522 its reverse (2253252), we get a palindrome (4776774).

The spelling of 2523522 in words is "two million, five hundred twenty-three thousand, five hundred twenty-two".