50557856394906 has 192 divisors, whose sum is σ = 127631256270336. Its totient is φ = 14166893260800.

The previous prime is 50557856394841. The next prime is 50557856394907. The reversal of 50557856394906 is 60949365875505.

50557856394906 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 78 + 5 + 63 + 9 + 490 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (50557856394907) 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, 606596796 + ... + 606680136.

It is an arithmetic number, because the mean of its divisors is an integer number (664746126408).

Almost surely, 2^{50557856394906} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50557856394906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63815628135168).

50557856394906 is an abundant number, since it is smaller than the sum of its proper divisors (77073399875430).

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

50557856394906 is a wasteful number, since it uses less digits than its factorization.

50557856394906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83917 (or 83914 counting only the distinct ones).

The product of its (nonzero) digits is 1224720000, while the sum is 72.

The spelling of 50557856394906 in words is "fifty trillion, five hundred fifty-seven billion, eight hundred fifty-six million, three hundred ninety-four thousand, nine hundred six".