550555001 has 8 divisors (see below), whose sum is σ = 582023520. Its totient is φ = 519335712.

The previous prime is 550554997. The next prime is 550555003. The reversal of 550555001 is 100555055.

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 550555001 - 2² = 550554997 is a prime.

It is a super-2 number, since 2×550555001² = 606221618252220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550555003) 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, 57755 + ... + 66608.

It is an arithmetic number, because the mean of its divisors is an integer number (72752940).

Almost surely, 2^550555001 is an apocalyptic number.

It is an amenable number.

550555001 is a deficient number, since it is larger than the sum of its proper divisors (31468519).

550555001 is a wasteful number, since it uses less digits than its factorization.

550555001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124615.

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 550555001 is about 23463.9084766370. The cubic root of 550555001 is about 819.5967683323.

It can be divided in two parts, 5505 and 55001, that added together give a palindrome (60506).

The spelling of 550555001 in words is "five hundred fifty million, five hundred fifty-five thousand, one".