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552004909 = 1732470877
BaseRepresentation
bin100000111001101…
…110110100101101
31102110200202101021
4200321232310231
52112303124114
6130435214141
716451651521
oct4071566455
91373622337
10552004909
11263657505
12134a47351
138a492c31
1453451d81
15336dc024
hex20e6ed2d

552004909 has 4 divisors (see below), whose sum is σ = 584475804. Its totient is φ = 519534016.

The previous prime is 552004883. The next prime is 552004927. The reversal of 552004909 is 909400255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 909400255 = 5181880051.

It can be written as a sum of positive squares in 2 ways, for example, as 416282409 + 135722500 = 20403^2 + 11650^2 .

It is a cyclic number.

It is not a de Polignac number, because 552004909 - 27 = 552004781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552004939) 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, 16235422 + ... + 16235455.

It is an arithmetic number, because the mean of its divisors is an integer number (146118951).

Almost surely, 2552004909 is an apocalyptic number.

It is an amenable number.

552004909 is a deficient number, since it is larger than the sum of its proper divisors (32470895).

552004909 is a wasteful number, since it uses less digits than its factorization.

552004909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32470894.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 552004909 is about 23494.7847191669. The cubic root of 552004909 is about 820.3156176467.

The spelling of 552004909 in words is "five hundred fifty-two million, four thousand, nine hundred nine".

Divisors: 1 17 32470877 552004909