51715706 has 16 divisors (see below), whose sum is σ = 88814016. Its totient is φ = 22124256.

The previous prime is 51715681. The next prime is 51715709. The reversal of 51715706 is 60751715.

It is not an unprimeable number, because it can be changed into a prime (51715709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5645 + ... + 11631.

It is an arithmetic number, because the mean of its divisors is an integer number (5550876).

Almost surely, 2^51715706 is an apocalyptic number.

51715706 is a deficient number, since it is larger than the sum of its proper divisors (37098310).

51715706 is a wasteful number, since it uses less digits than its factorization.

51715706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6613.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 51715706 is about 7191.3632921721. The cubic root of 51715706 is about 372.5696604103.

The spelling of 51715706 in words is "fifty-one million, seven hundred fifteen thousand, seven hundred six".