50550560638 has 4 divisors (see below), whose sum is σ = 75825840960. Its totient is φ = 25275280318.

The previous prime is 50550560573. The next prime is 50550560651. The reversal of 50550560638 is 83606505505.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×50550560638² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50550560594 and 50550560603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12637640158 + ... + 12637640161.

It is an arithmetic number, because the mean of its divisors is an integer number (18956460240).

Almost surely, 2^50550560638 is an apocalyptic number.

50550560638 is a deficient number, since it is larger than the sum of its proper divisors (25275280322).

50550560638 is a wasteful number, since it uses less digits than its factorization.

50550560638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275280321.

The product of its (nonzero) digits is 540000, while the sum is 43.

The spelling of 50550560638 in words is "fifty billion, five hundred fifty million, five hundred sixty thousand, six hundred thirty-eight".