2513505220 has 12 divisors (see below), whose sum is σ = 5278361004. Its totient is φ = 1005402080.

The previous prime is 2513505179. The next prime is 2513505227. The reversal of 2513505220 is 225053152.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1465817796 + 1047687424 = 38286^2 + 32368^2 .

It is not an unprimeable number, because it can be changed into a prime (2513505227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62837611 + ... + 62837650.

It is an arithmetic number, because the mean of its divisors is an integer number (439863417).

Almost surely, 2^2513505220 is an apocalyptic number.

2513505220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513505220 is an abundant number, since it is smaller than the sum of its proper divisors (2764855784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2513505220 is a wasteful number, since it uses less digits than its factorization.

2513505220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125675270 (or 125675268 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2513505220 is about 50134.8703000217. The cubic root of 2513505220 is about 1359.6483411719.

Adding to 2513505220 its reverse (225053152), we get a palindrome (2738558372).

The spelling of 2513505220 in words is "two billion, five hundred thirteen million, five hundred five thousand, two hundred twenty".