2520235305 has 24 divisors (see below), whose sum is σ = 4992466752. Its totient is φ = 1152107424.

The previous prime is 2520235213. The next prime is 2520235309. The reversal of 2520235305 is 5035320252.

It is not a de Polignac number, because 2520235305 - 2¹³ = 2520227113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2520235309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4000059 + ... + 4000688.

It is an arithmetic number, because the mean of its divisors is an integer number (208019448).

Almost surely, 2^2520235305 is an apocalyptic number.

It is an amenable number.

2520235305 is a deficient number, since it is larger than the sum of its proper divisors (2472231447).

2520235305 is a wasteful number, since it uses less digits than its factorization.

2520235305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000765 (or 8000762 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 2520235305 is about 50201.9452312358. The cubic root of 2520235305 is about 1360.8607773458.

Adding to 2520235305 its reverse (5035320252), we get a palindrome (7555555557).

The spelling of 2520235305 in words is "two billion, five hundred twenty million, two hundred thirty-five thousand, three hundred five".