2513512640 has 56 divisors (see below), whose sum is σ = 6067348800. Its totient is φ = 991623168.

The previous prime is 2513512627. The next prime is 2513512691. The reversal of 2513512640 is 462153152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30440 + ... + 77159.

Almost surely, 2^2513512640 is an apocalyptic number.

2513512640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513512640 is an abundant number, since it is smaller than the sum of its proper divisors (3553836160).

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

2513512640 is a wasteful number, since it uses less digits than its factorization.

2513512640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107689 (or 107679 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2513512640 is about 50134.9443003580. The cubic root of 2513512640 is about 1359.6496790885.

Adding to 2513512640 its reverse (462153152), we get a palindrome (2975665792).

It can be divided in two parts, 2513512 and 640, that added together give a palindrome (2514152).

The spelling of 2513512640 in words is "two billion, five hundred thirteen million, five hundred twelve thousand, six hundred forty".