51071205 has 8 divisors (see below), whose sum is σ = 81713952. Its totient is φ = 27237968.

The previous prime is 51071197. The next prime is 51071227. The reversal of 51071205 is 50217015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51071205 - 2³ = 51071197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702359 + ... + 1702388.

It is an arithmetic number, because the mean of its divisors is an integer number (10214244).

Almost surely, 2^51071205 is an apocalyptic number.

It is an amenable number.

51071205 is a deficient number, since it is larger than the sum of its proper divisors (30642747).

51071205 is a wasteful number, since it uses less digits than its factorization.

51071205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404755.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 51071205 is about 7146.4120368196. The cubic root of 51071205 is about 371.0154840809.

The spelling of 51071205 in words is "fifty-one million, seventy-one thousand, two hundred five".