50557589691672 has 384 divisors, whose sum is σ = 157749814656000. Its totient is φ = 13414654955520.

The previous prime is 50557589691647. The next prime is 50557589691677. The reversal of 50557589691672 is 27619698575505.

It is a junction number, because it is equal to n+sod(n) for n = 50557589691594 and 50557589691603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50557589691677) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2699130547 + ... + 2699149277.

It is an arithmetic number, because the mean of its divisors is an integer number (410806809000).

Almost surely, 2^{50557589691672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50557589691672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78874907328000).

50557589691672 is an abundant number, since it is smaller than the sum of its proper divisors (107192224964328).

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

50557589691672 is a wasteful number, since it uses less digits than its factorization.

50557589691672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20559 (or 20548 counting only the distinct ones).

The product of its (nonzero) digits is 1428840000, while the sum is 75.

The spelling of 50557589691672 in words is "fifty trillion, five hundred fifty-seven billion, five hundred eighty-nine million, six hundred ninety-one thousand, six hundred seventy-two".