513551502231 has 8 divisors (see below), whose sum is σ = 685490285184. Its totient is φ = 341990193720.

The previous prime is 513551502193. The next prime is 513551502257. The reversal of 513551502231 is 132205155315.

It is a happy number.

513551502231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 513551502231 - 2¹⁴ = 513551485847 is a prime.

It is a super-2 number, since 2×513551502231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513551502192 and 513551502201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513551502271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94365435 + ... + 94370876.

It is an arithmetic number, because the mean of its divisors is an integer number (85686285648).

Almost surely, 2^513551502231 is an apocalyptic number.

513551502231 is a deficient number, since it is larger than the sum of its proper divisors (171938782953).

513551502231 is a wasteful number, since it uses less digits than its factorization.

513551502231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188737221.

The product of its (nonzero) digits is 22500, while the sum is 33.

Adding to 513551502231 its reverse (132205155315), we get a palindrome (645756657546).

The spelling of 513551502231 in words is "five hundred thirteen billion, five hundred fifty-one million, five hundred two thousand, two hundred thirty-one".