52478517365 has 8 divisors (see below), whose sum is σ = 64162414008. Its totient is φ = 41190685120.

The previous prime is 52478517281. The next prime is 52478517379. The reversal of 52478517365 is 56371587425.

It can be written as a sum of positive squares in 4 ways, for example, as 2505703249 + 49972814116 = 50057^2 + 223546^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52478517365 - 2¹⁰ = 52478516341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99015806 + ... + 99016335.

It is an arithmetic number, because the mean of its divisors is an integer number (8020301751).

Almost surely, 2^52478517365 is an apocalyptic number.

It is an amenable number.

52478517365 is a deficient number, since it is larger than the sum of its proper divisors (11683896643).

52478517365 is a wasteful number, since it uses less digits than its factorization.

52478517365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198032199.

The product of its digits is 7056000, while the sum is 53.

The spelling of 52478517365 in words is "fifty-two billion, four hundred seventy-eight million, five hundred seventeen thousand, three hundred sixty-five".