50555555040 has 48 divisors (see below), whose sum is σ = 159249999888. Its totient is φ = 13481481216.

The previous prime is 50555554963. The next prime is 50555555081. The reversal of 50555555040 is 4055555505.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 50555555040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52661557 + ... + 52662516.

It is an arithmetic number, because the mean of its divisors is an integer number (3317708331).

Almost surely, 2^50555555040 is an apocalyptic number.

It is an amenable number.

50555555040 is an abundant number, since it is smaller than the sum of its proper divisors (108694444848).

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

50555555040 is a wasteful number, since it uses less digits than its factorization.

50555555040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105324091 (or 105324083 counting only the distinct ones).

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 50555555040 in words is "fifty billion, five hundred fifty-five million, five hundred fifty-five thousand, forty".