51011563153 has 2 divisors, whose sum is σ = 51011563154. Its totient is φ = 51011563152.

The previous prime is 51011563139. The next prime is 51011563199. The reversal of 51011563153 is 35136511015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39819404304 + 11192158849 = 199548^2 + 105793^2 .

It is a cyclic number.

It is not a de Polignac number, because 51011563153 - 2⁵ = 51011563121 is a prime.

It is not a weakly prime, because it can be changed into another prime (51011573153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505781576 + 25505781577.

It is an arithmetic number, because the mean of its divisors is an integer number (25505781577).

Almost surely, 2^51011563153 is an apocalyptic number.

It is an amenable number.

51011563153 is a deficient number, since it is larger than the sum of its proper divisors (1).

51011563153 is an equidigital number, since it uses as much as digits as its factorization.

51011563153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 51011563153 in words is "fifty-one billion, eleven million, five hundred sixty-three thousand, one hundred fifty-three".