51161759 has 8 divisors (see below), whose sum is σ = 55873152. Its totient is φ = 46460440.

The previous prime is 51161753. The next prime is 51161779. The reversal of 51161759 is 95716115.

It is a happy number.

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 51161759 - 2⁸ = 51161503 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 (51161753) 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, 11552 + ... + 15354.

It is an arithmetic number, because the mean of its divisors is an integer number (6984144).

Almost surely, 2^51161759 is an apocalyptic number.

51161759 is a deficient number, since it is larger than the sum of its proper divisors (4711393).

51161759 is a wasteful number, since it uses less digits than its factorization.

51161759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037.

The product of its digits is 9450, while the sum is 35.

The square root of 51161759 is about 7152.7448577452. The cubic root of 51161759 is about 371.2346362682.

The spelling of 51161759 in words is "fifty-one million, one hundred sixty-one thousand, seven hundred fifty-nine".