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552513233 = 2272433979
BaseRepresentation
bin100000111011101…
…010111011010001
31102111122120200002
4200323222323101
52112420410413
6130454135345
716456166516
oct4073527321
91374576602
10552513233
11263974408
12135051555
138a61040c
145354530d
153378c958
hex20eeaed1

552513233 has 4 divisors (see below), whose sum is σ = 554947440. Its totient is φ = 550079028.

The previous prime is 552513223. The next prime is 552513251. The reversal of 552513233 is 332315255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332315255 = 566463051.

It is a cyclic number.

It is not a de Polignac number, because 552513233 - 220 = 551464657 is a prime.

It is a super-2 number, since 2×5525132332 = 610541745280224578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 552513196 and 552513205.

It is not an unprimeable number, because it can be changed into a prime (552513223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216763 + ... + 1217216.

It is an arithmetic number, because the mean of its divisors is an integer number (138736860).

Almost surely, 2552513233 is an apocalyptic number.

It is an amenable number.

552513233 is a deficient number, since it is larger than the sum of its proper divisors (2434207).

552513233 is a wasteful number, since it uses less digits than its factorization.

552513233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434206.

The product of its digits is 13500, while the sum is 29.

The square root of 552513233 is about 23505.6000348853. The cubic root of 552513233 is about 820.5673413652.

Adding to 552513233 its reverse (332315255), we get a palindrome (884828488).

The spelling of 552513233 in words is "five hundred fifty-two million, five hundred thirteen thousand, two hundred thirty-three".

Divisors: 1 227 2433979 552513233