52020173 has 4 divisors (see below), whose sum is σ = 52061820. Its totient is φ = 51978528.

The previous prime is 52020169. The next prime is 52020191. The reversal of 52020173 is 37102025.

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 18992164 + 33028009 = 4358^2 + 5747^2 .

It is a cyclic number.

It is not a de Polignac number, because 52020173 - 2² = 52020169 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 (52020193) 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, 18890 + ... + 21467.

It is an arithmetic number, because the mean of its divisors is an integer number (13015455).

Almost surely, 2^52020173 is an apocalyptic number.

It is an amenable number.

52020173 is a deficient number, since it is larger than the sum of its proper divisors (41647).

52020173 is a wasteful number, since it uses less digits than its factorization.

52020173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41646.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 52020173 is about 7212.5011611784. The cubic root of 52020173 is about 373.2993760746.

Adding to 52020173 its reverse (37102025), we get a palindrome (89122198).

The spelling of 52020173 in words is "fifty-two million, twenty thousand, one hundred seventy-three".