550645501 has 8 divisors (see below), whose sum is σ = 630001280. Its totient is φ = 471462768.

The previous prime is 550645499. The next prime is 550645547. The reversal of 550645501 is 105546055.

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

It is not a de Polignac number, because 550645501 - 2¹ = 550645499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550645201) 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, 36366 + ... + 49231.

It is an arithmetic number, because the mean of its divisors is an integer number (78750160).

Almost surely, 2^550645501 is an apocalyptic number.

It is an amenable number.

550645501 is a deficient number, since it is larger than the sum of its proper divisors (79355779).

550645501 is an equidigital number, since it uses as much as digits as its factorization.

550645501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86523.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 550645501 is about 23465.8368911062. The cubic root of 550645501 is about 819.6416741961.

The spelling of 550645501 in words is "five hundred fifty million, six hundred forty-five thousand, five hundred one".