515505005140 has 24 divisors (see below), whose sum is σ = 1119890184840. Its totient is φ = 199091587968.

The previous prime is 515505005137. The next prime is 515505005167. The reversal of 515505005140 is 41500505515.

It can be written as a sum of positive squares in 4 ways, for example, as 5954591556 + 509550413584 = 77166^2 + 713828^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444400287 + ... + 444401446.

It is an arithmetic number, because the mean of its divisors is an integer number (46662091035).

Almost surely, 2^515505005140 is an apocalyptic number.

It is an amenable number.

515505005140 is an abundant number, since it is smaller than the sum of its proper divisors (604385179700).

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

515505005140 is a wasteful number, since it uses less digits than its factorization.

515505005140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888801771 (or 888801769 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 515505005140 in words is "five hundred fifteen billion, five hundred five million, five thousand, one hundred forty".