51706951 has 8 divisors (see below), whose sum is σ = 52975440. Its totient is φ = 50451648.

The previous prime is 51706943. The next prime is 51706973. The reversal of 51706951 is 15960715.

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 51706951 - 2³ = 51706943 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 (51706901) 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, 4885 + ... + 11281.

It is an arithmetic number, because the mean of its divisors is an integer number (6621930).

Almost surely, 2^51706951 is an apocalyptic number.

51706951 is a deficient number, since it is larger than the sum of its proper divisors (1268489).

51706951 is a wasteful number, since it uses less digits than its factorization.

51706951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 51706951 is about 7190.7545501150. The cubic root of 51706951 is about 372.5486350022.

It can be divided in two parts, 5170 and 6951, that added together give a palindrome (12121).

The spelling of 51706951 in words is "fifty-one million, seven hundred six thousand, nine hundred fifty-one".