2520066245 has 4 divisors (see below), whose sum is σ = 3024079500. Its totient is φ = 2016052992.

The previous prime is 2520066217. The next prime is 2520066253. The reversal of 2520066245 is 5426600252.

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 1700160289 + 819905956 = 41233^2 + 28634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520066245 - 2¹⁰ = 2520065221 is a prime.

It is a congruent 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, 252006620 + ... + 252006629.

It is an arithmetic number, because the mean of its divisors is an integer number (756019875).

Almost surely, 2^2520066245 is an apocalyptic number.

It is an amenable number.

2520066245 is a deficient number, since it is larger than the sum of its proper divisors (504013255).

2520066245 is an equidigital number, since it uses as much as digits as its factorization.

2520066245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504013254.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2520066245 is about 50200.2614037019. The cubic root of 2520066245 is about 1360.8303473476.

Adding to 2520066245 its reverse (5426600252), we get a palindrome (7946666497).

The spelling of 2520066245 in words is "two billion, five hundred twenty million, sixty-six thousand, two hundred forty-five".