50403890 has 8 divisors (see below), whose sum is σ = 90727020. Its totient is φ = 20161552.

The previous prime is 50403851. The next prime is 50403893. The reversal of 50403890 is 9830405.

It can be written as a sum of positive squares in 2 ways, for example, as 50367409 + 36481 = 7097^2 + 191^2 .

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

It is not an unprimeable number, because it can be changed into a prime (50403893) 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, 2520185 + ... + 2520204.

Almost surely, 2^50403890 is an apocalyptic number.

50403890 is a deficient number, since it is larger than the sum of its proper divisors (40323130).

50403890 is a wasteful number, since it uses less digits than its factorization.

50403890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5040396.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 50403890 is about 7099.5697052709. The cubic root of 50403890 is about 369.3924531498.

The spelling of 50403890 in words is "fifty million, four hundred three thousand, eight hundred ninety".