513150445523 has 4 divisors (see below), whose sum is σ = 513230669280. Its totient is φ = 513070221768.

The previous prime is 513150445517. The next prime is 513150445531. The reversal of 513150445523 is 325544051315.

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 513150445523 - 2⁸ = 513150445267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513150445573) 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, 40102283 + ... + 40115076.

It is an arithmetic number, because the mean of its divisors is an integer number (128307667320).

Almost surely, 2^513150445523 is an apocalyptic number.

513150445523 is a deficient number, since it is larger than the sum of its proper divisors (80223757).

513150445523 is an equidigital number, since it uses as much as digits as its factorization.

513150445523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80223756.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 513150445523 its reverse (325544051315), we get a palindrome (838694496838).

The spelling of 513150445523 in words is "five hundred thirteen billion, one hundred fifty million, four hundred forty-five thousand, five hundred twenty-three".