51767137 has 2 divisors, whose sum is σ = 51767138. Its totient is φ = 51767136.

The previous prime is 51767119. The next prime is 51767143. The reversal of 51767137 is 73176715.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31911201 + 19855936 = 5649^2 + 4456^2 .

It is a cyclic number.

It is not a de Polignac number, because 51767137 - 2¹¹ = 51765089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51767096 and 51767105.

It is not a weakly prime, because it can be changed into another prime (51764137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25883568 + 25883569.

It is an arithmetic number, because the mean of its divisors is an integer number (25883569).

Almost surely, 2^51767137 is an apocalyptic number.

It is an amenable number.

51767137 is a deficient number, since it is larger than the sum of its proper divisors (1).

51767137 is an equidigital number, since it uses as much as digits as its factorization.

51767137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 37.

The square root of 51767137 is about 7194.9382902149. The cubic root of 51767137 is about 372.6931256858.

The spelling of 51767137 in words is "fifty-one million, seven hundred sixty-seven thousand, one hundred thirty-seven".