2520812109 has 16 divisors (see below), whose sum is σ = 3466402560. Its totient is φ = 1628262720.

The previous prime is 2520812101. The next prime is 2520812117. The reversal of 2520812109 is 9012180252.

It is an interprime number because it is at equal distance from previous prime (2520812101) and next prime (2520812117).

It is not a de Polignac number, because 2520812109 - 2³ = 2520812101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520812101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20982 + ... + 74039.

It is an arithmetic number, because the mean of its divisors is an integer number (216650160).

Almost surely, 2^2520812109 is an apocalyptic number.

It is an amenable number.

2520812109 is a deficient number, since it is larger than the sum of its proper divisors (945590451).

2520812109 is a wasteful number, since it uses less digits than its factorization.

2520812109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95300.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 2520812109 is about 50207.6897397201. The cubic root of 2520812109 is about 1360.9645890894.

The spelling of 2520812109 in words is "two billion, five hundred twenty million, eight hundred twelve thousand, one hundred nine".