52512205 has 4 divisors (see below), whose sum is σ = 63014652. Its totient is φ = 42009760.

The previous prime is 52512179. The next prime is 52512217. The reversal of 52512205 is 50221525.

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 6245001 + 46267204 = 2499^2 + 6802^2 .

It is not a de Polignac number, because 52512205 - 2⁷ = 52512077 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5251216 + ... + 5251225.

It is an arithmetic number, because the mean of its divisors is an integer number (15753663).

Almost surely, 2^52512205 is an apocalyptic number.

It is an amenable number.

52512205 is a deficient number, since it is larger than the sum of its proper divisors (10502447).

52512205 is a wasteful number, since it uses less digits than its factorization.

52512205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10502446.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 52512205 is about 7246.5305491663. The cubic root of 52512205 is about 374.4726335214.

The spelling of 52512205 in words is "fifty-two million, five hundred twelve thousand, two hundred five".