51760769 has 4 divisors (see below), whose sum is σ = 54485040. Its totient is φ = 49036500.

The previous prime is 51760739. The next prime is 51760781. The reversal of 51760769 is 96706715.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51760769 is a prime.

It is a super-2 number, since 2×51760769² = 5358354414942722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51760739) 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, 1362107 + ... + 1362144.

It is an arithmetic number, because the mean of its divisors is an integer number (13621260).

Almost surely, 2^51760769 is an apocalyptic number.

It is an amenable number.

51760769 is a deficient number, since it is larger than the sum of its proper divisors (2724271).

51760769 is a wasteful number, since it uses less digits than its factorization.

51760769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724270.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 51760769 is about 7194.4957432749. The cubic root of 51760769 is about 372.6778430999.

The spelling of 51760769 in words is "fifty-one million, seven hundred sixty thousand, seven hundred sixty-nine".