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55645325 = 5210972029
BaseRepresentation
bin1101010001000…
…1010010001101
310212201002000222
43110101102031
5103221122300
65304401125
71243656161
oct324212215
9125632028
1055645325
112945717a
12167761a5
13b6b3b38
147566ca1
154d42785
hex351148d

55645325 has 12 divisors (see below), whose sum is σ = 69097140. Its totient is φ = 44453760.

The previous prime is 55645297. The next prime is 55645333. The reversal of 55645325 is 52354655.

It can be written as a sum of positive squares in 6 ways, for example, as 499849 + 55145476 = 707^2 + 7426^2 .

It is not a de Polignac number, because 55645325 - 28 = 55645069 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26411 + ... + 28439.

It is an arithmetic number, because the mean of its divisors is an integer number (5758095).

Almost surely, 255645325 is an apocalyptic number.

It is an amenable number.

55645325 is a deficient number, since it is larger than the sum of its proper divisors (13451815).

55645325 is a wasteful number, since it uses less digits than its factorization.

55645325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136 (or 3131 counting only the distinct ones).

The product of its digits is 90000, while the sum is 35.

The square root of 55645325 is about 7459.5794117363. The cubic root of 55645325 is about 381.7768243100.

The spelling of 55645325 in words is "fifty-five million, six hundred forty-five thousand, three hundred twenty-five".

Divisors: 1 5 25 1097 2029 5485 10145 27425 50725 2225813 11129065 55645325