2522539 has 4 divisors (see below), whose sum is σ = 2527056. Its totient is φ = 2518024.

The previous prime is 2522503. The next prime is 2522543. The reversal of 2522539 is 9352252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2522539 - 2⁹ = 2522027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2523539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (631764).

2^2522539 is an apocalyptic number.

2522539 is a deficient number, since it is larger than the sum of its proper divisors (4517).

2522539 is an equidigital number, since it uses as much as digits as its factorization.

2522539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516.

The product of its digits is 5400, while the sum is 28.

The square root of 2522539 is about 1588.2502951361. The cubic root of 2522539 is about 136.1275295973.

The spelling of 2522539 in words is "two million, five hundred twenty-two thousand, five hundred thirty-nine".