51307706 has 8 divisors (see below), whose sum is σ = 77003904. Its totient is φ = 25639740.

The previous prime is 51307693. The next prime is 51307721. The reversal of 51307706 is 60770315.

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

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, 1700 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (9625488).

Almost surely, 2^51307706 is an apocalyptic number.

51307706 is a deficient number, since it is larger than the sum of its proper divisors (25696198).

51307706 is a wasteful number, since it uses less digits than its factorization.

51307706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14116.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 51307706 is about 7162.9397596238. The cubic root of 51307706 is about 371.5873029504.

The spelling of 51307706 in words is "fifty-one million, three hundred seven thousand, seven hundred six".