51798863 has 2 divisors, whose sum is σ = 51798864. Its totient is φ = 51798862.

The previous prime is 51798833. The next prime is 51798869. The reversal of 51798863 is 36889715.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51798863 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 (51798869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25899431 + 25899432.

It is an arithmetic number, because the mean of its divisors is an integer number (25899432).

Almost surely, 2^51798863 is an apocalyptic number.

51798863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51798863 is an equidigital number, since it uses as much as digits as its factorization.

51798863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 51798863 is about 7197.1426969319. The cubic root of 51798863 is about 372.7692463556.

The spelling of 51798863 in words is "fifty-one million, seven hundred ninety-eight thousand, eight hundred sixty-three".