Search a number
-
+
551055001 = 7390720149
BaseRepresentation
bin100000110110000…
…110111010011001
31102101220111100111
4200312012322121
52112032230001
6130403004321
716440614230
oct4066067231
91371814314
10551055001
11263068862
121346696a1
138a21c763
1453285b17
15335a0851
hex20d86e99

551055001 has 8 divisors (see below), whose sum is σ = 629969600. Its totient is φ = 472188528.

The previous prime is 551054993. The next prime is 551055007. The reversal of 551055001 is 100550155.

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

It is not a de Polignac number, because 551055001 - 23 = 551054993 is a prime.

It is a super-2 number, since 2×5510550012 = 607323228254220002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551055007) 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, 17275 + ... + 37423.

It is an arithmetic number, because the mean of its divisors is an integer number (78746200).

Almost surely, 2551055001 is an apocalyptic number.

It is an amenable number.

551055001 is a deficient number, since it is larger than the sum of its proper divisors (78914599).

551055001 is a wasteful number, since it uses less digits than its factorization.

551055001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24063.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 551055001 is about 23474.5607200646. The cubic root of 551055001 is about 819.8448055492.

It can be divided in two parts, 55105 and 5001, that added together give a palindrome (60106).

The spelling of 551055001 in words is "five hundred fifty-one million, fifty-five thousand, one".

Divisors: 1 7 3907 20149 27349 141043 78722143 551055001