2520607109 has 4 divisors (see below), whose sum is σ = 2520906540. Its totient is φ = 2520307680.

The previous prime is 2520607093. The next prime is 2520607147. The reversal of 2520607109 is 9017060252.

2520607109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 436684609 + 2083922500 = 20897^2 + 45650^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520607109 - 2⁴ = 2520607093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520607189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136712 + ... + 154049.

It is an arithmetic number, because the mean of its divisors is an integer number (630226635).

Almost surely, 2^2520607109 is an apocalyptic number.

It is an amenable number.

2520607109 is a deficient number, since it is larger than the sum of its proper divisors (299431).

2520607109 is an equidigital number, since it uses as much as digits as its factorization.

2520607109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299430.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 2520607109 is about 50205.6481782678. The cubic root of 2520607109 is about 1360.9276955155.

The spelling of 2520607109 in words is "two billion, five hundred twenty million, six hundred seven thousand, one hundred nine".