51104617 has 2 divisors, whose sum is σ = 51104618. Its totient is φ = 51104616.

The previous prime is 51104587. The next prime is 51104621. The reversal of 51104617 is 71640115.

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., 43943641 + 7160976 = 6629^2 + 2676^2 .

It is a cyclic number.

It is not a de Polignac number, because 51104617 - 2⁷ = 51104489 is a prime.

It is a super-2 number, since 2×51104617² = 5223363757433378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51104591 and 51104600.

It is not a weakly prime, because it can be changed into another prime (51104657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552308 + 25552309.

It is an arithmetic number, because the mean of its divisors is an integer number (25552309).

Almost surely, 2^51104617 is an apocalyptic number.

It is an amenable number.

51104617 is a deficient number, since it is larger than the sum of its proper divisors (1).

51104617 is an equidigital number, since it uses as much as digits as its factorization.

51104617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 51104617 is about 7148.7493311767. The cubic root of 51104617 is about 371.0963755017.

The spelling of 51104617 in words is "fifty-one million, one hundred four thousand, six hundred seventeen".