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552112521 = 31671102021
BaseRepresentation
bin100000111010001…
…001000110001001
31102110220012222220
4200322021012021
52112320100041
6130441404253
716452610332
oct4072110611
91373805886
10552112521
11263720344
12134a99689
138a4ccbcc
145347d289
153370dd66
hex20e89189

552112521 has 8 divisors (see below), whose sum is σ = 740558784. Its totient is φ = 365870640.

The previous prime is 552112513. The next prime is 552112531. The reversal of 552112521 is 125211255.

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

It is not a de Polignac number, because 552112521 - 23 = 552112513 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 552112491 and 552112500.

It is not an unprimeable number, because it can be changed into a prime (552112531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550510 + ... + 551511.

It is an arithmetic number, because the mean of its divisors is an integer number (92569848).

Almost surely, 2552112521 is an apocalyptic number.

It is an amenable number.

552112521 is a deficient number, since it is larger than the sum of its proper divisors (188446263).

552112521 is a wasteful number, since it uses less digits than its factorization.

552112521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102191.

The product of its digits is 1000, while the sum is 24.

The square root of 552112521 is about 23497.0747328258. The cubic root of 552112521 is about 820.3689203541.

Adding to 552112521 its reverse (125211255), we get a palindrome (677323776).

The spelling of 552112521 in words is "five hundred fifty-two million, one hundred twelve thousand, five hundred twenty-one".

Divisors: 1 3 167 501 1102021 3306063 184037507 552112521