Search a number
-
+
5552821 = 231271901
BaseRepresentation
bin10101001011101010110101
3101110010001001
4111023222311
52410142241
6315003301
765124661
oct25135265
911403031
105552821
113152a0a
121a39531
1311c55c1
14a478a1
1574a431
hex54bab5

5552821 has 8 divisors (see below), whose sum is σ = 5842944. Its totient is φ = 5266800.

The previous prime is 5552819. The next prime is 5552843. The reversal of 5552821 is 1282555.

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 5552821 - 21 = 5552819 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5552821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5552861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971 + ... + 3871.

It is an arithmetic number, because the mean of its divisors is an integer number (730368).

Almost surely, 25552821 is an apocalyptic number.

It is an amenable number.

5552821 is a deficient number, since it is larger than the sum of its proper divisors (290123).

5552821 is a wasteful number, since it uses less digits than its factorization.

5552821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its digits is 4000, while the sum is 28.

The square root of 5552821 is about 2356.4424457219. The cubic root of 5552821 is about 177.0806977724.

It can be divided in two parts, 5 and 552821, that added together give a triangular number (552826 = T1051).

The spelling of 5552821 in words is "five million, five hundred fifty-two thousand, eight hundred twenty-one".

Divisors: 1 23 127 1901 2921 43723 241427 5552821