50451818 has 32 divisors (see below), whose sum is σ = 83524608. Its totient is φ = 22752000.

The previous prime is 50451809. The next prime is 50451827. The reversal of 50451818 is 81815405.

It is an interprime number because it is at equal distance from previous prime (50451809) and next prime (50451827).

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 158996 + ... + 159312.

It is an arithmetic number, because the mean of its divisors is an integer number (2610144).

Almost surely, 2^50451818 is an apocalyptic number.

50451818 is a deficient number, since it is larger than the sum of its proper divisors (33072790).

50451818 is a wasteful number, since it uses less digits than its factorization.

50451818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 50451818 is about 7102.9443190835. The cubic root of 50451818 is about 369.5094985665.

The spelling of 50451818 in words is "fifty million, four hundred fifty-one thousand, eight hundred eighteen".