513214223653 has 4 divisors (see below), whose sum is σ = 513316077120. Its totient is φ = 513112370188.

The previous prime is 513214223623. The next prime is 513214223671. The reversal of 513214223653 is 356322412315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513214223653 - 2¹³ = 513214215461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513214223623) 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, 50919175 + ... + 50929252.

It is an arithmetic number, because the mean of its divisors is an integer number (128329019280).

Almost surely, 2^513214223653 is an apocalyptic number.

It is an amenable number.

513214223653 is a deficient number, since it is larger than the sum of its proper divisors (101853467).

513214223653 is a wasteful number, since it uses less digits than its factorization.

513214223653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101853466.

The product of its digits is 129600, while the sum is 37.

Adding to 513214223653 its reverse (356322412315), we get a palindrome (869536635968).

The spelling of 513214223653 in words is "five hundred thirteen billion, two hundred fourteen million, two hundred twenty-three thousand, six hundred fifty-three".