513244522051 has 4 divisors (see below), whose sum is σ = 513249910072. Its totient is φ = 513239134032.

The previous prime is 513244522033. The next prime is 513244522057. The reversal of 513244522051 is 150225442315.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513244522051 - 2⁵ = 513244522019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513244521998 and 513244522016.

It is not an unprimeable number, because it can be changed into a prime (513244522057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548506 + ... + 2742511.

It is an arithmetic number, because the mean of its divisors is an integer number (128312477518).

Almost surely, 2^513244522051 is an apocalyptic number.

513244522051 is a deficient number, since it is larger than the sum of its proper divisors (5388021).

513244522051 is an equidigital number, since it uses as much as digits as its factorization.

513244522051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388020.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 513244522051 its reverse (150225442315), we get a palindrome (663469964366).

The spelling of 513244522051 in words is "five hundred thirteen billion, two hundred forty-four million, five hundred twenty-two thousand, fifty-one".