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553505225 = 52721334757
BaseRepresentation
bin100000111111011…
…101000111001001
31102120111222102112
4200333131013021
52113144131400
6130531312105
716500500600
oct4077350711
91376458375
10553505225
11264491739
1213544b635
138a899ab0
1453722a37
15338d6835
hex20fdd1c9

553505225 has 36 divisors (see below), whose sum is σ = 859843404. Its totient is φ = 350340480.

The previous prime is 553505221. The next prime is 553505231. The reversal of 553505225 is 522505355.

It can be written as a sum of positive squares in 6 ways, for example, as 114854089 + 438651136 = 10717^2 + 20944^2 .

It is not a de Polignac number, because 553505225 - 22 = 553505221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 553505191 and 553505200.

It is not an unprimeable number, because it can be changed into a prime (553505221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1454 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (23884539).

Almost surely, 2553505225 is an apocalyptic number.

It is an amenable number.

553505225 is a deficient number, since it is larger than the sum of its proper divisors (306338179).

553505225 is a wasteful number, since it uses less digits than its factorization.

553505225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34794 (or 34782 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 32.

The square root of 553505225 is about 23526.6917563860. The cubic root of 553505225 is about 821.0581347800.

The spelling of 553505225 in words is "five hundred fifty-three million, five hundred five thousand, two hundred twenty-five".

Divisors: 1 5 7 13 25 35 49 65 91 175 245 325 455 637 1225 2275 3185 15925 34757 173785 243299 451841 868925 1216495 1703093 2259205 3162887 6082475 8515465 11296025 15814435 22140209 42577325 79072175 110701045 553505225