51313417 has 2 divisors, whose sum is σ = 51313418. Its totient is φ = 51313416.

The previous prime is 51313403. The next prime is 51313439. The reversal of 51313417 is 71431315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38180041 + 13133376 = 6179^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 51313417 - 2⁷ = 51313289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51313391 and 51313400.

It is not a weakly prime, because it can be changed into another prime (51313447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25656708 + 25656709.

It is an arithmetic number, because the mean of its divisors is an integer number (25656709).

Almost surely, 2^51313417 is an apocalyptic number.

It is an amenable number.

51313417 is a deficient number, since it is larger than the sum of its proper divisors (1).

51313417 is an equidigital number, since it uses as much as digits as its factorization.

51313417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 25.

The square root of 51313417 is about 7163.3383977026. The cubic root of 51313417 is about 371.6010894197.

It can be divided in two parts, 513134 and 17, that multiplied together give a palindrome (8723278).

The spelling of 51313417 in words is "fifty-one million, three hundred thirteen thousand, four hundred seventeen".