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55104725 = 5213169553
BaseRepresentation
bin1101001000110…
…1010011010101
310211200121110202
43102031103111
5103101322400
65245030245
71236245114
oct322152325
9124617422
1055104725
1129117aa5
1216555385
13b554a60
147465c7b
154c874d5
hex348d4d5

55104725 has 12 divisors (see below), whose sum is σ = 73586436. Its totient is φ = 40692480.

The previous prime is 55104719. The next prime is 55104737. The reversal of 55104725 is 52740155.

55104725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 11992369 + 43112356 = 3463^2 + 6566^2 .

It is not a de Polignac number, because 55104725 - 210 = 55103701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 84452 + ... + 85101.

It is an arithmetic number, because the mean of its divisors is an integer number (6132203).

Almost surely, 255104725 is an apocalyptic number.

It is an amenable number.

55104725 is a deficient number, since it is larger than the sum of its proper divisors (18481711).

55104725 is a wasteful number, since it uses less digits than its factorization.

55104725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169576 (or 169571 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 55104725 is about 7423.2556873652. The cubic root of 55104725 is about 380.5364652800.

The spelling of 55104725 in words is "fifty-five million, one hundred four thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 65 325 169553 847765 2204189 4238825 11020945 55104725