51706361 has 8 divisors (see below), whose sum is σ = 60095040. Its totient is φ = 43568208.

The previous prime is 51706337. The next prime is 51706397. The reversal of 51706361 is 16360715.

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 51706361 - 2⁶ = 51706297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51706321) 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, 62186 + ... + 63011.

It is an arithmetic number, because the mean of its divisors is an integer number (7511880).

Almost surely, 2^51706361 is an apocalyptic number.

It is an amenable number.

51706361 is a deficient number, since it is larger than the sum of its proper divisors (8388679).

51706361 is a wasteful number, since it uses less digits than its factorization.

51706361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125263.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 51706361 is about 7190.7135250961. The cubic root of 51706361 is about 372.5472180133.

The spelling of 51706361 in words is "fifty-one million, seven hundred six thousand, three hundred sixty-one".