2521513 has 8 divisors (see below), whose sum is σ = 2703168. Its totient is φ = 2345904.

The previous prime is 2521507. The next prime is 2521517. The reversal of 2521513 is 3151252.

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

It is a cyclic number.

It is not a de Polignac number, because 2521513 - 2⁵ = 2521481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521517) 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, 631 + ... + 2332.

It is an arithmetic number, because the mean of its divisors is an integer number (337896).

2^2521513 is an apocalyptic number.

2521513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2521513 is a deficient number, since it is larger than the sum of its proper divisors (181655).

2521513 is a wasteful number, since it uses less digits than its factorization.

2521513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023.

The product of its digits is 300, while the sum is 19.

The square root of 2521513 is about 1587.9272653368. The cubic root of 2521513 is about 136.1090712391.

Adding to 2521513 its reverse (3151252), we get a palindrome (5672765).

The spelling of 2521513 in words is "two million, five hundred twenty-one thousand, five hundred thirteen".