2520715 has 4 divisors (see below), whose sum is σ = 3024864. Its totient is φ = 2016568.

The previous prime is 2520697. The next prime is 2520769. The reversal of 2520715 is 5170252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2520715 - 2⁷ = 2520587 is a prime.

It is a super-2 number, since 2×2520715² = 12708008222450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 252067 + ... + 252076.

It is an arithmetic number, because the mean of its divisors is an integer number (756216).

2^2520715 is an apocalyptic number.

2520715 is a deficient number, since it is larger than the sum of its proper divisors (504149).

2520715 is an equidigital number, since it uses as much as digits as its factorization.

2520715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504148.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2520715 is about 1587.6759744986. The cubic root of 2520715 is about 136.0947112763.

Adding to 2520715 its reverse (5170252), we get a palindrome (7690967).

The spelling of 2520715 in words is "two million, five hundred twenty thousand, seven hundred fifteen".