49500018 has 32 divisors (see below), whose sum is σ = 110819520. Its totient is φ = 16377120.

The previous prime is 49499987. The next prime is 49500023. The reversal of 49500018 is 81000594.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49499964 and 49500000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4053 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (3463110).

Almost surely, 2^49500018 is an apocalyptic number.

49500018 is an abundant number, since it is smaller than the sum of its proper divisors (61319502).

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

49500018 is a wasteful number, since it uses less digits than its factorization.

49500018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 49500018 is about 7035.6249189393. The cubic root of 49500018 is about 367.1710676081.

The spelling of 49500018 in words is "forty-nine million, five hundred thousand, eighteen".