50555302780 has 96 divisors (see below), whose sum is σ = 115823022336. Its totient is φ = 18462130176.

The previous prime is 50555302757. The next prime is 50555302783. The reversal of 50555302780 is 8720355505.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50555302783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1791742 + ... + 1819738.

It is an arithmetic number, because the mean of its divisors is an integer number (1206489816).

Almost surely, 2^50555302780 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 50555302780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57911511168).

50555302780 is an abundant number, since it is smaller than the sum of its proper divisors (65267719556).

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

50555302780 is a wasteful number, since it uses less digits than its factorization.

50555302780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28183 (or 28181 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 50555302780 in words is "fifty billion, five hundred fifty-five million, three hundred two thousand, seven hundred eighty".