550055001 has 8 divisors (see below), whose sum is σ = 734037664. Its totient is φ = 366387840.

The previous prime is 550054991. The next prime is 550055003. The reversal of 550055001 is 100550055.

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

It is not a de Polignac number, because 550055001 - 2¹⁴ = 550038617 is a prime.

It is a super-2 number, since 2×550055001² = 605121008250220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550055003) 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, 74776 + ... + 81801.

It is an arithmetic number, because the mean of its divisors is an integer number (91754708).

Almost surely, 2^550055001 is an apocalyptic number.

It is an amenable number.

550055001 is a deficient number, since it is larger than the sum of its proper divisors (183982663).

550055001 is a wasteful number, since it uses less digits than its factorization.

550055001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157751.

The product of its (nonzero) digits is 625, while the sum is 21.

The square root of 550055001 is about 23453.2513950625. The cubic root of 550055001 is about 819.3485808959.

It can be divided in two parts, 55005 and 5001, that added together give a palindrome (60006).

The spelling of 550055001 in words is "five hundred fifty million, fifty-five thousand, one".