50021253225 has 18 divisors (see below), whose sum is σ = 89593622846. Its totient is φ = 26678001600.

The previous prime is 50021253211. The next prime is 50021253281. The reversal of 50021253225 is 52235212005.

50021253225 is a `hidden beast` number, since 500 + 2 + 125 + 32 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 15211768896 + 34809484329 = 123336^2 + 186573^2 .

It is not a de Polignac number, because 50021253225 - 2⁵ = 50021253193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111158116 + ... + 111158565.

Almost surely, 2^50021253225 is an apocalyptic number.

It is an amenable number.

50021253225 is a deficient number, since it is larger than the sum of its proper divisors (39572369621).

50021253225 is a wasteful number, since it uses less digits than its factorization.

50021253225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222316697 (or 222316689 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 50021253225 in words is "fifty billion, twenty-one million, two hundred fifty-three thousand, two hundred twenty-five".