2520605613 has 8 divisors (see below), whose sum is σ = 3374870400. Its totient is φ = 1673372288.

The previous prime is 2520605599. The next prime is 2520605621. The reversal of 2520605613 is 3165060252.

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 2520605613 - 2¹³ = 2520597421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520605693) 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, 1757028 + ... + 1758461.

It is an arithmetic number, because the mean of its divisors is an integer number (421858800).

Almost surely, 2^2520605613 is an apocalyptic number.

It is an amenable number.

2520605613 is a deficient number, since it is larger than the sum of its proper divisors (854264787).

2520605613 is a wasteful number, since it uses less digits than its factorization.

2520605613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515731.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2520605613 is about 50205.6332795434. The cubic root of 2520605613 is about 1360.9274262750.

Adding to 2520605613 its reverse (3165060252), we get a palindrome (5685665865).

The spelling of 2520605613 in words is "two billion, five hundred twenty million, six hundred five thousand, six hundred thirteen".