513131545055 has 8 divisors (see below), whose sum is σ = 615771852144. Its totient is φ = 410495904000.

The previous prime is 513131545019. The next prime is 513131545063. The reversal of 513131545055 is 550545131315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 513131545055 - 2¹⁴ = 513131528671 is a prime.

It is a Duffinian number.

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, 919826 + ... + 1368335.

It is an arithmetic number, because the mean of its divisors is an integer number (76971481518).

Almost surely, 2^513131545055 is an apocalyptic number.

513131545055 is a deficient number, since it is larger than the sum of its proper divisors (102640307089).

513131545055 is a wasteful number, since it uses less digits than its factorization.

513131545055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333017.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 513131545055 in words is "five hundred thirteen billion, one hundred thirty-one million, five hundred forty-five thousand, fifty-five".