2513530 has 8 divisors (see below), whose sum is σ = 4524372. Its totient is φ = 1005408.

The previous prime is 2513527. The next prime is 2513549. The reversal of 2513530 is 353152.

It can be written as a sum of positive squares in 2 ways, for example, as 2024929 + 488601 = 1423^2 + 699^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2513498 and 2513507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125667 + ... + 125686.

2^2513530 is an apocalyptic number.

2513530 is a deficient number, since it is larger than the sum of its proper divisors (2010842).

2513530 is a wasteful number, since it uses less digits than its factorization.

2513530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251360.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 2513530 is about 1585.4116184764. The cubic root of 2513530 is about 135.9652809298.

Adding to 2513530 its reverse (353152), we get a palindrome (2866682).

The spelling of 2513530 in words is "two million, five hundred thirteen thousand, five hundred thirty".