550486561 has 8 divisors (see below), whose sum is σ = 569576448. Its totient is φ = 531480000.

The previous prime is 550486553. The next prime is 550486583. The reversal of 550486561 is 165684055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550486561 - 2³ = 550486553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550486511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7240 + ... + 33961.

It is an arithmetic number, because the mean of its divisors is an integer number (71197056).

Almost surely, 2^550486561 is an apocalyptic number.

It is an amenable number.

550486561 is a deficient number, since it is larger than the sum of its proper divisors (19089887).

550486561 is a wasteful number, since it uses less digits than its factorization.

550486561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41663.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 550486561 is about 23462.4500212574. The cubic root of 550486561 is about 819.5628053149.

The spelling of 550486561 in words is "five hundred fifty million, four hundred eighty-six thousand, five hundred sixty-one".