51705371 has 8 divisors (see below), whose sum is σ = 52211040. Its totient is φ = 51202368.

The previous prime is 51705343. The next prime is 51705373. The reversal of 51705371 is 17350715.

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 51705371 - 2¹⁰ = 51704347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51705373) 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, 67925 + ... + 68681.

It is an arithmetic number, because the mean of its divisors is an integer number (6526380).

Almost surely, 2^51705371 is an apocalyptic number.

51705371 is a deficient number, since it is larger than the sum of its proper divisors (505669).

51705371 is a wasteful number, since it uses less digits than its factorization.

51705371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 3675, while the sum is 29.

The square root of 51705371 is about 7190.6446859791. The cubic root of 51705371 is about 372.5448403297.

The spelling of 51705371 in words is "fifty-one million, seven hundred five thousand, three hundred seventy-one".