52000145 has 4 divisors (see below), whose sum is σ = 62400180. Its totient is φ = 41600112.

The previous prime is 52000139. The next prime is 52000159. The reversal of 52000145 is 54100025.

52000145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 27636049 + 24364096 = 5257^2 + 4936^2 .

It is a cyclic number.

It is not a de Polignac number, because 52000145 - 2¹⁴ = 51983761 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5200010 + ... + 5200019.

It is an arithmetic number, because the mean of its divisors is an integer number (15600045).

Almost surely, 2^52000145 is an apocalyptic number.

It is an amenable number.

52000145 is a deficient number, since it is larger than the sum of its proper divisors (10400035).

52000145 is a wasteful number, since it uses less digits than its factorization.

52000145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10400034.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 52000145 is about 7211.1126048620. The cubic root of 52000145 is about 373.2514626135.

The spelling of 52000145 in words is "fifty-two million, one hundred forty-five", and thus it is an aban number.