50421388425 has 24 divisors (see below), whose sum is σ = 88267091616. Its totient is φ = 25309559040.

The previous prime is 50421388387. The next prime is 50421388439. The reversal of 50421388425 is 52488312405.

It is not a de Polignac number, because 50421388425 - 2¹¹ = 50421386377 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19771819 + ... + 19774368.

It is an arithmetic number, because the mean of its divisors is an integer number (3677795484).

Almost surely, 2^50421388425 is an apocalyptic number.

It is an amenable number.

50421388425 is a deficient number, since it is larger than the sum of its proper divisors (37845703191).

50421388425 is a wasteful number, since it uses less digits than its factorization.

50421388425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39546217 (or 39546212 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 50421388425 in words is "fifty billion, four hundred twenty-one million, three hundred eighty-eight thousand, four hundred twenty-five".