50251818 has 8 divisors (see below), whose sum is σ = 100503648. Its totient is φ = 16750604.

The previous prime is 50251807. The next prime is 50251819. The reversal of 50251818 is 81815205.

It is a sphenic number, since it is the product of 3 distinct primes.

50251818 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (50251819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4187646 + ... + 4187657.

It is an arithmetic number, because the mean of its divisors is an integer number (12562956).

Almost surely, 2^50251818 is an apocalyptic number.

50251818 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

50251818 is a wasteful number, since it uses less digits than its factorization.

50251818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375308.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 50251818 is about 7088.8516700521. The cubic root of 50251818 is about 369.0205847757.

The spelling of 50251818 in words is "fifty million, two hundred fifty-one thousand, eight hundred eighteen".