550504631 has 4 divisors (see below), whose sum is σ = 551920200. Its totient is φ = 549089064.

The previous prime is 550504597. The next prime is 550504639. The reversal of 550504631 is 136405055.

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 550504631 - 2⁶ = 550504567 is a prime.

It is a super-2 number, since 2×550504631² = 606110697504892322, 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 = 550504594 and 550504603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550504639) 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, 707201 + ... + 707978.

It is an arithmetic number, because the mean of its divisors is an integer number (137980050).

Almost surely, 2^550504631 is an apocalyptic number.

550504631 is a deficient number, since it is larger than the sum of its proper divisors (1415569).

550504631 is a wasteful number, since it uses less digits than its factorization.

550504631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415568.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 550504631 is about 23462.8351014962. The cubic root of 550504631 is about 819.5717727381.

Adding to 550504631 its reverse (136405055), we get a palindrome (686909686).

The spelling of 550504631 in words is "five hundred fifty million, five hundred four thousand, six hundred thirty-one".