50005550 has 24 divisors (see below), whose sum is σ = 106298256. Its totient is φ = 17144640.

The previous prime is 50005531. The next prime is 50005559. The reversal of 50005550 is 5550005.

It is a happy number.

50005550 is a modest number, since divided by 5550 gives 50 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50005559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71087 + ... + 71786.

It is an arithmetic number, because the mean of its divisors is an integer number (4429094).

Almost surely, 2^50005550 is an apocalyptic number.

50005550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50005550 is an abundant number, since it is smaller than the sum of its proper divisors (56292706).

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

50005550 is a wasteful number, since it uses less digits than its factorization.

50005550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142892 (or 142887 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 50005550 is about 7071.4602452393. The cubic root of 50005550 is about 368.4167802763.

Adding to 50005550 its reverse (5550005), we get a palindrome (55555555).

The spelling of 50005550 in words is "fifty million, five thousand, five hundred fifty".