51626863 has 2 divisors, whose sum is σ = 51626864. Its totient is φ = 51626862.

The previous prime is 51626849. The next prime is 51626867. The reversal of 51626863 is 36862615.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51626863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51626867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25813431 + 25813432.

It is an arithmetic number, because the mean of its divisors is an integer number (25813432).

Almost surely, 2^51626863 is an apocalyptic number.

51626863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51626863 is an equidigital number, since it uses as much as digits as its factorization.

51626863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 51626863 is about 7185.1835745512. The cubic root of 51626863 is about 372.3561909029.

The spelling of 51626863 in words is "fifty-one million, six hundred twenty-six thousand, eight hundred sixty-three".