50921720925 has 24 divisors (see below), whose sum is σ = 88621664160. Its totient is φ = 25728868800.

The previous prime is 50921720923. The next prime is 50921720939. The reversal of 50921720925 is 52902712905.

It is not a de Polignac number, because 50921720925 - 2¹ = 50921720923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50921720923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17865846 + ... + 17868695.

It is an arithmetic number, because the mean of its divisors is an integer number (3692569340).

Almost surely, 2^50921720925 is an apocalyptic number.

It is an amenable number.

50921720925 is a deficient number, since it is larger than the sum of its proper divisors (37699943235).

50921720925 is a wasteful number, since it uses less digits than its factorization.

50921720925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35734573 (or 35734568 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 50921720925 in words is "fifty billion, nine hundred twenty-one million, seven hundred twenty thousand, nine hundred twenty-five".