513401333255 has 16 divisors (see below), whose sum is σ = 619353011424. Its totient is φ = 408540672000.

The previous prime is 513401333183. The next prime is 513401333287. The reversal of 513401333255 is 552333104315.

It is a happy number.

It is not a de Polignac number, because 513401333255 - 2¹² = 513401329159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8656412 + ... + 8715518.

It is an arithmetic number, because the mean of its divisors is an integer number (38709563214).

Almost surely, 2^513401333255 is an apocalyptic number.

513401333255 is a deficient number, since it is larger than the sum of its proper divisors (105951678169).

513401333255 is a wasteful number, since it uses less digits than its factorization.

513401333255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68306.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 513401333255 in words is "five hundred thirteen billion, four hundred one million, three hundred thirty-three thousand, two hundred fifty-five".