50778002580 has 24 divisors (see below), whose sum is σ = 142178407392. Its totient is φ = 13540800672.

The previous prime is 50778002567. The next prime is 50778002581. The reversal of 50778002580 is 8520087705.

It is a happy number.

50778002580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50778002581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423149962 + ... + 423150081.

It is an arithmetic number, because the mean of its divisors is an integer number (5924100308).

Almost surely, 2^50778002580 is an apocalyptic number.

It is an amenable number.

50778002580 is an abundant number, since it is smaller than the sum of its proper divisors (91400404812).

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

50778002580 is a wasteful number, since it uses less digits than its factorization.

50778002580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846300055 (or 846300053 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 50778002580 in words is "fifty billion, seven hundred seventy-eight million, two thousand, five hundred eighty".