2513151640 has 32 divisors (see below), whose sum is σ = 5704642080. Its totient is φ = 996362752.

The previous prime is 2513151631. The next prime is 2513151661. The reversal of 2513151640 is 461513152.

2513151640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2513151599 and 2513151608.

It is a congruent number.

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, 273484 + ... + 282523.

It is an arithmetic number, because the mean of its divisors is an integer number (178270065).

Almost surely, 2^2513151640 is an apocalyptic number.

2513151640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2513151640 is an abundant number, since it is smaller than the sum of its proper divisors (3191490440).

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

2513151640 is a wasteful number, since it uses less digits than its factorization.

2513151640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556131 (or 556127 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2513151640 is about 50131.3438878313. The cubic root of 2513151640 is about 1359.5845833301.

Adding to 2513151640 its reverse (461513152), we get a palindrome (2974664792).

The spelling of 2513151640 in words is "two billion, five hundred thirteen million, one hundred fifty-one thousand, six hundred forty".