513360026251 has 16 divisors (see below), whose sum is σ = 546098924160. Its totient is φ = 480904640640.

The previous prime is 513360026239. The next prime is 513360026279. The reversal of 513360026251 is 152620063315.

It is a cyclic number.

It is not a de Polignac number, because 513360026251 - 2⁵ = 513360026219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513360026351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16265356 + ... + 16296886.

It is an arithmetic number, because the mean of its divisors is an integer number (34131182760).

Almost surely, 2^513360026251 is an apocalyptic number.

513360026251 is a deficient number, since it is larger than the sum of its proper divisors (32738897909).

513360026251 is a wasteful number, since it uses less digits than its factorization.

513360026251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35994.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 513360026251 its reverse (152620063315), we get a palindrome (665980089566).

The spelling of 513360026251 in words is "five hundred thirteen billion, three hundred sixty million, twenty-six thousand, two hundred fifty-one".