51419497 has 2 divisors, whose sum is σ = 51419498. Its totient is φ = 51419496.

The previous prime is 51419477. The next prime is 51419507. The reversal of 51419497 is 79491415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 19395216 = 5659^2 + 4404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51419497 is a prime.

It is not a weakly prime, because it can be changed into another prime (51419437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25709748 + 25709749.

It is an arithmetic number, because the mean of its divisors is an integer number (25709749).

Almost surely, 2^51419497 is an apocalyptic number.

It is an amenable number.

51419497 is a deficient number, since it is larger than the sum of its proper divisors (1).

51419497 is an equidigital number, since it uses as much as digits as its factorization.

51419497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 51419497 is about 7170.7389437909. The cubic root of 51419497 is about 371.8569829277.

The spelling of 51419497 in words is "fifty-one million, four hundred nineteen thousand, four hundred ninety-seven".