51622663 has 2 divisors, whose sum is σ = 51622664. Its totient is φ = 51622662.

The previous prime is 51622643. The next prime is 51622667. The reversal of 51622663 is 36622615.

51622663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51622663 - 2¹⁷ = 51491591 is a prime.

It is equal to p_3092584 and since 51622663 and 3092584 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51622667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25811331 + 25811332.

It is an arithmetic number, because the mean of its divisors is an integer number (25811332).

Almost surely, 2^51622663 is an apocalyptic number.

51622663 is a deficient number, since it is larger than the sum of its proper divisors (1).

51622663 is an equidigital number, since it uses as much as digits as its factorization.

51622663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

The square root of 51622663 is about 7184.8913005000. The cubic root of 51622663 is about 372.3460931984.

The spelling of 51622663 in words is "fifty-one million, six hundred twenty-two thousand, six hundred sixty-three".