2505558 has 16 divisors (see below), whose sum is σ = 5466816. Its totient is φ = 759240.

The previous prime is 2505557. The next prime is 2505611. The reversal of 2505558 is 8555052.

It is a super-3 number, since 3×2505558³ = 47188333070772603336, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505557) 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, 18916 + ... + 19047.

It is an arithmetic number, because the mean of its divisors is an integer number (341676).

2^2505558 is an apocalyptic number.

2505558 is an abundant number, since it is smaller than the sum of its proper divisors (2961258).

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

2505558 is a wasteful number, since it uses less digits than its factorization.

2505558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37979.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2505558 is about 1582.8954482214. The cubic root of 2505558 is about 135.8213846073.

The spelling of 2505558 in words is "two million, five hundred five thousand, five hundred fifty-eight".