51769289 has 16 divisors (see below), whose sum is σ = 61220544. Its totient is φ = 43156800.

The previous prime is 51769283. The next prime is 51769303. The reversal of 51769289 is 98296715.

It is a cyclic number.

It is not a de Polignac number, because 51769289 - 2⁴ = 51769273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51769283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22199 + ... + 24419.

It is an arithmetic number, because the mean of its divisors is an integer number (3826284).

Almost surely, 2^51769289 is an apocalyptic number.

It is an amenable number.

51769289 is a deficient number, since it is larger than the sum of its proper divisors (9451255).

51769289 is a wasteful number, since it uses less digits than its factorization.

51769289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408.

The product of its digits is 272160, while the sum is 47.

The square root of 51769289 is about 7195.0878382408. The cubic root of 51769289 is about 372.6982899949.

The spelling of 51769289 in words is "fifty-one million, seven hundred sixty-nine thousand, two hundred eighty-nine".