51238463 has 2 divisors, whose sum is σ = 51238464. Its totient is φ = 51238462.

The previous prime is 51238417. The next prime is 51238471. The reversal of 51238463 is 36483215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51238463 - 2⁶ = 51238399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51238163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25619231 + 25619232.

It is an arithmetic number, because the mean of its divisors is an integer number (25619232).

Almost surely, 2^51238463 is an apocalyptic number.

51238463 is a deficient number, since it is larger than the sum of its proper divisors (1).

51238463 is an equidigital number, since it uses as much as digits as its factorization.

51238463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 51238463 is about 7158.1047072532. The cubic root of 51238463 is about 371.4200674934.

The spelling of 51238463 in words is "fifty-one million, two hundred thirty-eight thousand, four hundred sixty-three".