2505579 has 16 divisors (see below), whose sum is σ = 3591072. Its totient is φ = 1548288.

The previous prime is 2505557. The next prime is 2505611. The reversal of 2505579 is 9755052.

It is not a de Polignac number, because 2505579 - 2⁹ = 2505067 is a prime.

It is a super-2 number, since 2×2505579² = 12555852250482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2505539) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3387 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (224442).

2^2505579 is an apocalyptic number.

2505579 is a deficient number, since it is larger than the sum of its proper divisors (1085493).

2505579 is a wasteful number, since it uses less digits than its factorization.

2505579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 2505579 is about 1582.9020816210. The cubic root of 2505579 is about 135.8217640625.

The spelling of 2505579 in words is "two million, five hundred five thousand, five hundred seventy-nine".