51463393 has 2 divisors, whose sum is σ = 51463394. Its totient is φ = 51463392.

The previous prime is 51463361. The next prime is 51463417. The reversal of 51463393 is 39336415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50594769 + 868624 = 7113^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 51463393 - 2⁵ = 51463361 is a prime.

It is not a weakly prime, because it can be changed into another prime (51463793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25731696 + 25731697.

It is an arithmetic number, because the mean of its divisors is an integer number (25731697).

Almost surely, 2^51463393 is an apocalyptic number.

It is an amenable number.

51463393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51463393 is an equidigital number, since it uses as much as digits as its factorization.

51463393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 51463393 is about 7173.7990632579. The cubic root of 51463393 is about 371.9627689451.

The spelling of 51463393 in words is "fifty-one million, four hundred sixty-three thousand, three hundred ninety-three".