50558639040 has 1344 divisors, whose sum is σ = 227219865600. Its totient is φ = 10241925120.

The previous prime is 50558638961. The next prime is 50558639041. The reversal of 50558639040 is 4093685505.

50558639040 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 8 + 639 + 0 + 4 + 0 = 666.

50558639040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50558639041) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 398099457 + ... + 398099583.

It is an arithmetic number, because the mean of its divisors is an integer number (169062400).

Almost surely, 2^50558639040 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 50558639040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113609932800).

50558639040 is an abundant number, since it is smaller than the sum of its proper divisors (176661226560).

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

50558639040 is a wasteful number, since it uses less digits than its factorization.

50558639040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 50558639040 in words is "fifty billion, five hundred fifty-eight million, six hundred thirty-nine thousand, forty".