50911153225 has 9 divisors (see below), whose sum is σ = 63131228967. Its totient is φ = 40728020040.

The previous prime is 50911153217. The next prime is 50911153231. The reversal of 50911153225 is 52235111905.

It is a happy number.

The square root of 50911153225 is 225635.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18328015161 + 32583138064 = 135381^2 + 180508^2 .

It is not a de Polignac number, because 50911153225 - 2³ = 50911153217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 1105612 + ... + 1150738.

Almost surely, 2^50911153225 is an apocalyptic number.

50911153225 is the 225635-th square number.

50911153225 is the 112818-th centered octagonal number.

It is an amenable number.

50911153225 is a deficient number, since it is larger than the sum of its proper divisors (12220075742).

50911153225 is an frugal number, since it uses more digits than its factorization.

50911153225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90264 (or 45132 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 34.

The spelling of 50911153225 in words is "fifty billion, nine hundred eleven million, one hundred fifty-three thousand, two hundred twenty-five".