51258563 has 2 divisors, whose sum is σ = 51258564. Its totient is φ = 51258562.

The previous prime is 51258547. The next prime is 51258607. The reversal of 51258563 is 36585215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51258563 - 2⁴ = 51258547 is a prime.

It is not a weakly prime, because it can be changed into another prime (51258503) 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, 25629281 + 25629282.

It is an arithmetic number, because the mean of its divisors is an integer number (25629282).

Almost surely, 2^51258563 is an apocalyptic number.

51258563 is a deficient number, since it is larger than the sum of its proper divisors (1).

51258563 is an equidigital number, since it uses as much as digits as its factorization.

51258563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 51258563 is about 7159.5085725209. The cubic root of 51258563 is about 371.4686284567.

The spelling of 51258563 in words is "fifty-one million, two hundred fifty-eight thousand, five hundred sixty-three".