50077534185 has 144 divisors (see below), whose sum is σ = 109966162176. Its totient is φ = 20608321536.

The previous prime is 50077534181. The next prime is 50077534189. The reversal of 50077534185 is 58143577005.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50077534181) and next prime (50077534189).

It is not a de Polignac number, because 50077534185 - 2² = 50077534181 is a prime.

It is a super-2 number, since 2×50077534185² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 50077534185.

It is not an unprimeable number, because it can be changed into a prime (50077534181) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2081847 + ... + 2105763.

It is an arithmetic number, because the mean of its divisors is an integer number (763653904).

Almost surely, 2^50077534185 is an apocalyptic number.

It is an amenable number.

50077534185 is an abundant number, since it is smaller than the sum of its proper divisors (59888627991).

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

50077534185 is a wasteful number, since it uses less digits than its factorization.

50077534185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23992 (or 23972 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 45.

The spelling of 50077534185 in words is "fifty billion, seventy-seven million, five hundred thirty-four thousand, one hundred eighty-five".