2513456020 has 24 divisors (see below), whose sum is σ = 5305059144. Its totient is φ = 1000277376.

The previous prime is 2513456009. The next prime is 2513456027. The reversal of 2513456020 is 206543152.

It can be written as a sum of positive squares in 4 ways, for example, as 193877776 + 2319578244 = 13924^2 + 48162^2 .

It is a super-2 number, since 2×2513456020² = 12634922328948480800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2513456020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513456027) 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, 315027 + ... + 322906.

It is an arithmetic number, because the mean of its divisors is an integer number (221044131).

Almost surely, 2^2513456020 is an apocalyptic number.

2513456020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513456020 is an abundant number, since it is smaller than the sum of its proper divisors (2791603124).

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

2513456020 is a wasteful number, since it uses less digits than its factorization.

2513456020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638139 (or 638137 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2513456020 is about 50134.3796211741. The cubic root of 2513456020 is about 1359.6394697448.

Adding to 2513456020 its reverse (206543152), we get a palindrome (2719999172).

The spelling of 2513456020 in words is "two billion, five hundred thirteen million, four hundred fifty-six thousand, twenty".