50554939128 has 64 divisors (see below), whose sum is σ = 132926054400. Its totient is φ = 16000333440.

The previous prime is 50554939117. The next prime is 50554939147. The reversal of 50554939128 is 82193945505.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601608 + ... + 680471.

It is an arithmetic number, because the mean of its divisors is an integer number (2076969600).

Almost surely, 2^50554939128 is an apocalyptic number.

It is an amenable number.

50554939128 is an abundant number, since it is smaller than the sum of its proper divisors (82371115272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50554939128 is a wasteful number, since it uses less digits than its factorization.

50554939128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282172 (or 1282168 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 51.

The spelling of 50554939128 in words is "fifty billion, five hundred fifty-four million, nine hundred thirty-nine thousand, one hundred twenty-eight".