2513261340 has 36 divisors (see below), whose sum is σ = 7623559944. Its totient is φ = 670202976.

The previous prime is 2513261279. The next prime is 2513261389. The reversal of 2513261340 is 431623152.

2513261340 is a `hidden beast` number, since 2 + 5 + 1 + 3 + 2 + 613 + 40 = 666.

2513261340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6981102 + ... + 6981461.

It is an arithmetic number, because the mean of its divisors is an integer number (211765554).

Almost surely, 2^2513261340 is an apocalyptic number.

2513261340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513261340 is an abundant number, since it is smaller than the sum of its proper divisors (5110298604).

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

2513261340 is a wasteful number, since it uses less digits than its factorization.

2513261340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962578 (or 13962573 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2513261340 is about 50132.4380017569. The cubic root of 2513261340 is about 1359.6043651658.

Adding to 2513261340 its reverse (431623152), we get a palindrome (2944884492).

The spelling of 2513261340 in words is "two billion, five hundred thirteen million, two hundred sixty-one thousand, three hundred forty".