2530605 has 48 divisors (see below), whose sum is σ = 5154624. Its totient is φ = 1048320.

The previous prime is 2530597. The next prime is 2530663. The reversal of 2530605 is 5060352.

It is not a de Polignac number, because 2530605 - 2³ = 2530597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7929 + ... + 8241.

It is an arithmetic number, because the mean of its divisors is an integer number (107388).

2^2530605 is an apocalyptic number.

It is an amenable number.

2530605 is an abundant number, since it is smaller than the sum of its proper divisors (2624019).

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

2530605 is a wasteful number, since it uses less digits than its factorization.

2530605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 2530605 is about 1590.7875408112. The cubic root of 2530605 is about 136.2724677479.

Adding to 2530605 its reverse (5060352), we get a palindrome (7590957).

The spelling of 2530605 in words is "two million, five hundred thirty thousand, six hundred five".