52918877497 has 4 divisors (see below), whose sum is σ = 52926469236. Its totient is φ = 52911285760.

The previous prime is 52918877449. The next prime is 52918877527. The reversal of 52918877497 is 79477881925.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34034346256 + 18884531241 = 184484^2 + 137421^2 .

It is a cyclic number.

It is not a de Polignac number, because 52918877497 - 2⁷ = 52918877369 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52918847497) 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, 3785404 + ... + 3799357.

It is an arithmetic number, because the mean of its divisors is an integer number (13231617309).

Almost surely, 2^52918877497 is an apocalyptic number.

It is an amenable number.

52918877497 is a deficient number, since it is larger than the sum of its proper divisors (7591739).

52918877497 is an equidigital number, since it uses as much as digits as its factorization.

52918877497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591738.

The product of its digits is 71124480, while the sum is 67.

The spelling of 52918877497 in words is "fifty-two billion, nine hundred eighteen million, eight hundred seventy-seven thousand, four hundred ninety-seven".