51526663 has 2 divisors, whose sum is σ = 51526664. Its totient is φ = 51526662.

The previous prime is 51526633. The next prime is 51526667. The reversal of 51526663 is 36662515.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51526663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51526667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25763331 + 25763332.

It is an arithmetic number, because the mean of its divisors is an integer number (25763332).

Almost surely, 2^51526663 is an apocalyptic number.

51526663 is a deficient number, since it is larger than the sum of its proper divisors (1).

51526663 is an equidigital number, since it uses as much as digits as its factorization.

51526663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 51526663 is about 7178.2075060561. The cubic root of 51526663 is about 372.1151390422.

The spelling of 51526663 in words is "fifty-one million, five hundred twenty-six thousand, six hundred sixty-three".