505552998 has 16 divisors (see below), whose sum is σ = 1045972080. Its totient is φ = 162706656.

The previous prime is 505552997. The next prime is 505553003. The reversal of 505552998 is 899255505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505552997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452565 + ... + 1452912.

It is an arithmetic number, because the mean of its divisors is an integer number (65373255).

Almost surely, 2^505552998 is an apocalyptic number.

505552998 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

505552998 is an abundant number, since it is smaller than the sum of its proper divisors (540419082).

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

505552998 is a wasteful number, since it uses less digits than its factorization.

505552998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905511.

The product of its (nonzero) digits is 810000, while the sum is 48.

The square root of 505552998 is about 22484.5057317256. The cubic root of 505552998 is about 796.6279933920.

The spelling of 505552998 in words is "five hundred five million, five hundred fifty-two thousand, nine hundred ninety-eight".