52173900400217 has 4 divisors (see below), whose sum is σ = 52173970319796. Its totient is φ = 52173830480640.

The previous prime is 52173900400211. The next prime is 52173900400313. The reversal of 52173900400217 is 71200400937125.

It is a happy number.

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 41632897950736 + 10541002449481 = 6452356^2 + 3246691^2 .

It is a cyclic number.

It is not a de Polignac number, because 52173900400217 - 2⁴ = 52173900400201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52173900400211) 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, 33828284 + ... + 35336957.

It is an arithmetic number, because the mean of its divisors is an integer number (13043492579949).

Almost surely, 2^{52173900400217} is an apocalyptic number.

It is an amenable number.

52173900400217 is a deficient number, since it is larger than the sum of its proper divisors (69919579).

52173900400217 is an equidigital number, since it uses as much as digits as its factorization.

52173900400217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69919578.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 52173900400217 in words is "fifty-two trillion, one hundred seventy-three billion, nine hundred million, four hundred thousand, two hundred seventeen".