50018404 has 6 divisors (see below), whose sum is σ = 87532214. Its totient is φ = 25009200.

The previous prime is 50018389. The next prime is 50018411. The reversal of 50018404 is 40481005.

It can be written as a sum of positive squares in only one way, i.e., 46785600 + 3232804 = 6840^2 + 1798^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6252297 + ... + 6252304.

Almost surely, 2^50018404 is an apocalyptic number.

It is an amenable number.

50018404 is a deficient number, since it is larger than the sum of its proper divisors (37513810).

50018404 is a wasteful number, since it uses less digits than its factorization.

50018404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12504605 (or 12504603 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 50018404 is about 7072.3690514565. The cubic root of 50018404 is about 368.4483449298.

Adding to 50018404 its reverse (40481005), we get a palindrome (90499409).

The spelling of 50018404 in words is "fifty million, eighteen thousand, four hundred four".