52125805 has 4 divisors (see below), whose sum is σ = 62550972. Its totient is φ = 41700640.

The previous prime is 52125803. The next prime is 52125809. The reversal of 52125805 is 50852125.

52125805 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 10381284 + 41744521 = 3222^2 + 6461^2 .

It is not a de Polignac number, because 52125805 - 2¹ = 52125803 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 (52125803) by changing a digit.

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, 5212576 + ... + 5212585.

It is an arithmetic number, because the mean of its divisors is an integer number (15637743).

Almost surely, 2^52125805 is an apocalyptic number.

It is an amenable number.

52125805 is a deficient number, since it is larger than the sum of its proper divisors (10425167).

52125805 is a wasteful number, since it uses less digits than its factorization.

52125805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425166.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 52125805 is about 7219.8202886221. The cubic root of 52125805 is about 373.5518787550.

The spelling of 52125805 in words is "fifty-two million, one hundred twenty-five thousand, eight hundred five".