51407617 has 2 divisors, whose sum is σ = 51407618. Its totient is φ = 51407616.

The previous prime is 51407611. The next prime is 51407623. The reversal of 51407617 is 71670415.

It is a balanced prime because it is at equal distance from previous prime (51407611) and next prime (51407623).

It can be written as a sum of positive squares in only one way, i.e., 51036736 + 370881 = 7144^2 + 609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51407617 is a prime.

It is not a weakly prime, because it can be changed into another prime (51407611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25703808 + 25703809.

It is an arithmetic number, because the mean of its divisors is an integer number (25703809).

Almost surely, 2^51407617 is an apocalyptic number.

It is an amenable number.

51407617 is a deficient number, since it is larger than the sum of its proper divisors (1).

51407617 is an equidigital number, since it uses as much as digits as its factorization.

51407617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 51407617 is about 7169.9105294278. The cubic root of 51407617 is about 371.8283426811.

The spelling of 51407617 in words is "fifty-one million, four hundred seven thousand, six hundred seventeen".