2520530 has 16 divisors (see below), whose sum is σ = 4558680. Its totient is φ = 1003392.

The previous prime is 2520503. The next prime is 2520577. The reversal of 2520530 is 350252.

It can be written as a sum of positive squares in 4 ways, for example, as 727609 + 1792921 = 853^2 + 1339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2520499 and 2520508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222 + ... + 3158.

2^2520530 is an apocalyptic number.

2520530 is a deficient number, since it is larger than the sum of its proper divisors (2038150).

2520530 is a wasteful number, since it uses less digits than its factorization.

2520530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 2520530 is about 1587.6177121713. The cubic root of 2520530 is about 136.0913817795.

Adding to 2520530 its reverse (350252), we get a palindrome (2870782).

The spelling of 2520530 in words is "two million, five hundred twenty thousand, five hundred thirty".