51361417 has 2 divisors, whose sum is σ = 51361418. Its totient is φ = 51361416.

The previous prime is 51361411. The next prime is 51361423. The reversal of 51361417 is 71416315.

It is a balanced prime because it is at equal distance from previous prime (51361411) and next prime (51361423).

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 5067001 = 6804^2 + 2251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51361417 is a prime.

It is not a weakly prime, because it can be changed into another prime (51361411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25680708 + 25680709.

It is an arithmetic number, because the mean of its divisors is an integer number (25680709).

Almost surely, 2^51361417 is an apocalyptic number.

It is an amenable number.

51361417 is a deficient number, since it is larger than the sum of its proper divisors (1).

51361417 is an equidigital number, since it uses as much as digits as its factorization.

51361417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 51361417 is about 7166.6880077202. The cubic root of 51361417 is about 371.7169219806.

The spelling of 51361417 in words is "fifty-one million, three hundred sixty-one thousand, four hundred seventeen".