52005018 has 24 divisors (see below), whose sum is σ = 112628448. Its totient is φ = 16001232.

The previous prime is 52005013. The next prime is 52005029. The reversal of 52005018 is 81050025.

It is a junction number, because it is equal to n+sod(n) for n = 52004985 and 52005003.

It is not an unprimeable number, because it can be changed into a prime (52005013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24630 + ... + 26657.

It is an arithmetic number, because the mean of its divisors is an integer number (4692852).

Almost surely, 2^52005018 is an apocalyptic number.

52005018 is an abundant number, since it is smaller than the sum of its proper divisors (60623430).

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

52005018 is a wasteful number, since it uses less digits than its factorization.

52005018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51318 (or 51305 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 52005018 is about 7211.4504782325. The cubic root of 52005018 is about 373.2631215398.

The spelling of 52005018 in words is "fifty-two million, five thousand, eighteen".