51760881 has 6 divisors (see below), whose sum is σ = 74765730. Its totient is φ = 34507248.

The previous prime is 51760873. The next prime is 51760889. The reversal of 51760881 is 18806715.

51760881 is a `hidden beast` number, since 517 + 60 + 8 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (51760873) and next prime (51760889).

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 4769856 = 6855^2 + 2184^2 .

It is not a de Polignac number, because 51760881 - 2³ = 51760873 is a prime.

It is a super-2 number, since 2×51760881² = 5358377603792322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51760889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2875596 + ... + 2875613.

It is an arithmetic number, because the mean of its divisors is an integer number (12460955).

Almost surely, 2^51760881 is an apocalyptic number.

It is an amenable number.

51760881 is a deficient number, since it is larger than the sum of its proper divisors (23004849).

51760881 is a wasteful number, since it uses less digits than its factorization.

51760881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751215 (or 5751212 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 51760881 is about 7194.5035269989. The cubic root of 51760881 is about 372.6781118999.

The spelling of 51760881 in words is "fifty-one million, seven hundred sixty thousand, eight hundred eighty-one".