52170578454445 has 32 divisors (see below), whose sum is σ = 71960153316480. Its totient is φ = 35910481213440.

The previous prime is 52170578454391. The next prime is 52170578454473. The reversal of 52170578454445 is 54445487507125.

It is a happy number.

It is not a de Polignac number, because 52170578454445 - 2¹⁵ = 52170578421677 is a prime.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23085084 + ... + 25244053.

It is an arithmetic number, because the mean of its divisors is an integer number (2248754791140).

Almost surely, 2^{52170578454445} is an apocalyptic number.

52170578454445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52170578454445 is a deficient number, since it is larger than the sum of its proper divisors (19789574862035).

52170578454445 is a wasteful number, since it uses less digits than its factorization.

52170578454445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48330205.

The product of its (nonzero) digits is 125440000, while the sum is 61.

The spelling of 52170578454445 in words is "fifty-two trillion, one hundred seventy billion, five hundred seventy-eight million, four hundred fifty-four thousand, four hundred forty-five".