550505131 has 4 divisors (see below), whose sum is σ = 600551064. Its totient is φ = 500459200.

The previous prime is 550505083. The next prime is 550505141. The reversal of 550505131 is 131505055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 550505131 - 2¹³ = 550496939 is a prime.

It is a super-2 number, since 2×550505131² = 606111798514654322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550505096 and 550505105.

It is not an unprimeable number, because it can be changed into a prime (550505141) 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 3 ways as a sum of consecutive naturals, for example, 25022950 + ... + 25022971.

It is an arithmetic number, because the mean of its divisors is an integer number (150137766).

Almost surely, 2^550505131 is an apocalyptic number.

550505131 is a deficient number, since it is larger than the sum of its proper divisors (50045933).

550505131 is a wasteful number, since it uses less digits than its factorization.

550505131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50045932.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 550505131 is about 23462.8457566426. The cubic root of 550505131 is about 819.5720208654.

The spelling of 550505131 in words is "five hundred fifty million, five hundred five thousand, one hundred thirty-one".