51705295 has 4 divisors (see below), whose sum is σ = 62046360. Its totient is φ = 41364232.

The previous prime is 51705293. The next prime is 51705301. The reversal of 51705295 is 59250715.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51705295 - 2¹ = 51705293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51705295.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51705293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170525 + ... + 5170534.

It is an arithmetic number, because the mean of its divisors is an integer number (15511590).

Almost surely, 2^51705295 is an apocalyptic number.

51705295 is a deficient number, since it is larger than the sum of its proper divisors (10341065).

51705295 is a wasteful number, since it uses less digits than its factorization.

51705295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341064.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 51705295 is about 7190.6394013328. The cubic root of 51705295 is about 372.5446577992.

The spelling of 51705295 in words is "fifty-one million, seven hundred five thousand, two hundred ninety-five".