52021205 has 4 divisors (see below), whose sum is σ = 62425452. Its totient is φ = 41616960.

The previous prime is 52021201. The next prime is 52021219. The reversal of 52021205 is 50212025.

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 27952369 + 24068836 = 5287^2 + 4906^2 .

It is not a de Polignac number, because 52021205 - 2² = 52021201 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 (52021201) 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, 5202116 + ... + 5202125.

It is an arithmetic number, because the mean of its divisors is an integer number (15606363).

Almost surely, 2^52021205 is an apocalyptic number.

It is an amenable number.

52021205 is a deficient number, since it is larger than the sum of its proper divisors (10404247).

52021205 is a wasteful number, since it uses less digits than its factorization.

52021205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10404246.

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

The square root of 52021205 is about 7212.5727032731. The cubic root of 52021205 is about 373.3018446195.

The spelling of 52021205 in words is "fifty-two million, twenty-one thousand, two hundred five".