52613517493 has 4 divisors (see below), whose sum is σ = 52639682368. Its totient is φ = 52587352620.

The previous prime is 52613517487. The next prime is 52613517499. The reversal of 52613517493 is 39471531625.

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 an interprime number because it is at equal distance from previous prime (52613517487) and next prime (52613517499).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52613517493 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 (52613517499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13079421 + ... + 13083442.

It is an arithmetic number, because the mean of its divisors is an integer number (13159920592).

Almost surely, 2^52613517493 is an apocalyptic number.

It is an amenable number.

52613517493 is a deficient number, since it is larger than the sum of its proper divisors (26164875).

52613517493 is a wasteful number, since it uses less digits than its factorization.

52613517493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164874.

The product of its digits is 680400, while the sum is 46.

The spelling of 52613517493 in words is "fifty-two billion, six hundred thirteen million, five hundred seventeen thousand, four hundred ninety-three".