50538532018 has 16 divisors (see below), whose sum is σ = 82480812120. Its totient is φ = 23085006336.

The previous prime is 50538532001. The next prime is 50538532049. The reversal of 50538532018 is 81023583505.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20960379729 + 29578152289 = 144777^2 + 171983^2 .

It is a super-2 number, since 2×50538532018² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10017013 + ... + 10022056.

Almost surely, 2^50538532018 is an apocalyptic number.

50538532018 is a deficient number, since it is larger than the sum of its proper divisors (31942280102).

50538532018 is a wasteful number, since it uses less digits than its factorization.

50538532018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039181.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 50538532018 in words is "fifty billion, five hundred thirty-eight million, five hundred thirty-two thousand, eighteen".