50021559025 has 27 divisors (see below), whose sum is σ = 63634806049. Its totient is φ = 39005432000.

The previous prime is 50021559001. The next prime is 50021559031. The reversal of 50021559025 is 52095512005.

It is a happy number.

The square root of 50021559025 is 223655.

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

50021559025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21054880609 + 28966678416 = 145103^2 + 170196^2 .

It is not a de Polignac number, because 50021559025 - 2¹⁹ = 50021034737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 45848730 + ... + 45849820.

Almost surely, 2^50021559025 is an apocalyptic number.

50021559025 is the 223655-th square number.

50021559025 is the 111828-th centered octagonal number.

It is an amenable number.

50021559025 is a deficient number, since it is larger than the sum of its proper divisors (13613247024).

50021559025 is an frugal number, since it uses more digits than its factorization.

50021559025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 50021559025 in words is "fifty billion, twenty-one million, five hundred fifty-nine thousand, twenty-five".