50550530478 has 32 divisors (see below), whose sum is σ = 115591988736. Its totient is φ = 14437018848.

The previous prime is 50550530477. The next prime is 50550530497. The reversal of 50550530478 is 87403505505.

It is a super-2 number, since 2×50550530478² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50550530477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146601 + ... + 350132.

It is an arithmetic number, because the mean of its divisors is an integer number (3612249648).

Almost surely, 2^50550530478 is an apocalyptic number.

50550530478 is an abundant number, since it is smaller than the sum of its proper divisors (65041458258).

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

50550530478 is a wasteful number, since it uses less digits than its factorization.

50550530478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499168.

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 50550530478 in words is "fifty billion, five hundred fifty million, five hundred thirty thousand, four hundred seventy-eight".