50555055555540 has 240 divisors, whose sum is σ = 167402560691520. Its totient is φ = 12771800701632.

The previous prime is 50555055555517. The next prime is 50555055555547. The reversal of 50555055555540 is 4555555055505.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50555055555547) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8836699 + ... + 13386461.

It is an arithmetic number, because the mean of its divisors is an integer number (697510669548).

Almost surely, 2^{50555055555540} 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 50555055555540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83701280345760).

50555055555540 is an abundant number, since it is smaller than the sum of its proper divisors (116847505135980).

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

50555055555540 is a wasteful number, since it uses less digits than its factorization.

50555055555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549841 (or 4549792 counting only the distinct ones).

The product of its (nonzero) digits is 39062500, while the sum is 54.

The spelling of 50555055555540 in words is "fifty trillion, five hundred fifty-five billion, fifty-five million, five hundred fifty-five thousand, five hundred forty".