51352205 has 4 divisors (see below), whose sum is σ = 61622652. Its totient is φ = 41081760.

The previous prime is 51352201. The next prime is 51352207. The reversal of 51352205 is 50225315.

51352205 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 22857961 + 28494244 = 4781^2 + 5338^2 .

It is not a de Polignac number, because 51352205 - 2² = 51352201 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 (51352201) 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, 5135216 + ... + 5135225.

It is an arithmetic number, because the mean of its divisors is an integer number (15405663).

Almost surely, 2^51352205 is an apocalyptic number.

It is an amenable number.

51352205 is a deficient number, since it is larger than the sum of its proper divisors (10270447).

51352205 is a wasteful number, since it uses less digits than its factorization.

51352205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10270446.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 51352205 is about 7166.0452831391. The cubic root of 51352205 is about 371.6946973794.

The spelling of 51352205 in words is "fifty-one million, three hundred fifty-two thousand, two hundred five".