50565553 has 2 divisors, whose sum is σ = 50565554. Its totient is φ = 50565552.

The previous prime is 50565547. The next prime is 50565577. The reversal of 50565553 is 35556505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31002624 + 19562929 = 5568^2 + 4423^2 .

It is a cyclic number.

It is not a de Polignac number, because 50565553 - 2⁹ = 50565041 is a prime.

It is not a weakly prime, because it can be changed into another prime (50565583) 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, 25282776 + 25282777.

It is an arithmetic number, because the mean of its divisors is an integer number (25282777).

Almost surely, 2^50565553 is an apocalyptic number.

It is an amenable number.

50565553 is a deficient number, since it is larger than the sum of its proper divisors (1).

50565553 is an equidigital number, since it uses as much as digits as its factorization.

50565553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56250, while the sum is 34.

The square root of 50565553 is about 7110.9459989512. The cubic root of 50565553 is about 369.7869555126.

It can be divided in two parts, 5056 and 5553, that added together give a square (10609 = 103²).

The spelling of 50565553 in words is "fifty million, five hundred sixty-five thousand, five hundred fifty-three".