52178145583 has 4 divisors (see below), whose sum is σ = 52523696368. Its totient is φ = 51832594800.

The previous prime is 52178145581. The next prime is 52178145623. The reversal of 52178145583 is 38554187125.

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 52178145583 - 2¹ = 52178145581 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 (52178145581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172775166 + ... + 172775467.

It is an arithmetic number, because the mean of its divisors is an integer number (13130924092).

Almost surely, 2^52178145583 is an apocalyptic number.

52178145583 is a deficient number, since it is larger than the sum of its proper divisors (345550785).

52178145583 is a wasteful number, since it uses less digits than its factorization.

52178145583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345550784.

The product of its digits is 1344000, while the sum is 49.

The spelling of 52178145583 in words is "fifty-two billion, one hundred seventy-eight million, one hundred forty-five thousand, five hundred eighty-three".