51552156563 has 2 divisors, whose sum is σ = 51552156564. Its totient is φ = 51552156562.

The previous prime is 51552156529. The next prime is 51552156629. The reversal of 51552156563 is 36565125515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51552156563 - 2¹⁰ = 51552155539 is a prime.

It is not a weakly prime, because it can be changed into another prime (51552156503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25776078281 + 25776078282.

It is an arithmetic number, because the mean of its divisors is an integer number (25776078282).

Almost surely, 2^51552156563 is an apocalyptic number.

51552156563 is a deficient number, since it is larger than the sum of its proper divisors (1).

51552156563 is an equidigital number, since it uses as much as digits as its factorization.

51552156563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 675000, while the sum is 44.

The spelling of 51552156563 in words is "fifty-one billion, five hundred fifty-two million, one hundred fifty-six thousand, five hundred sixty-three".