2520255513 has 16 divisors (see below), whose sum is σ = 3538464320. Its totient is φ = 1591171776.

The previous prime is 2520255503. The next prime is 2520255553. The reversal of 2520255513 is 3155520252.

It is not a de Polignac number, because 2520255513 - 2⁶ = 2520255449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2520255503) 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, 201231 + ... + 213387.

It is an arithmetic number, because the mean of its divisors is an integer number (221154020).

Almost surely, 2^2520255513 is an apocalyptic number.

It is an amenable number.

2520255513 is a deficient number, since it is larger than the sum of its proper divisors (1018208807).

2520255513 is a wasteful number, since it uses less digits than its factorization.

2520255513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2520255513 is about 50202.1464979337. The cubic root of 2520255513 is about 1360.8644145990.

Adding to 2520255513 its reverse (3155520252), we get a palindrome (5675775765).

The spelling of 2520255513 in words is "two billion, five hundred twenty million, two hundred fifty-five thousand, five hundred thirteen".