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55652665 = 511130533
BaseRepresentation
bin1101010001001…
…1000100111001
310212201110002211
43110103010321
5103221341130
65304455121
71244016445
oct324230471
9125643084
1055652665
1129461742
121677a4a1
13b6b7293
147569825
154d44a2a
hex3513139

55652665 has 4 divisors (see below), whose sum is σ = 66783204. Its totient is φ = 44522128.

The previous prime is 55652659. The next prime is 55652669. The reversal of 55652665 is 56625655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15241216 + 40411449 = 3904^2 + 6357^2 .

It is a cyclic number.

It is not a de Polignac number, because 55652665 - 225 = 22098233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55652669) 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, 5565262 + ... + 5565271.

It is an arithmetic number, because the mean of its divisors is an integer number (16695801).

Almost surely, 255652665 is an apocalyptic number.

It is an amenable number.

55652665 is a deficient number, since it is larger than the sum of its proper divisors (11130539).

55652665 is a wasteful number, since it uses less digits than its factorization.

55652665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130538.

The product of its digits is 270000, while the sum is 40.

The square root of 55652665 is about 7460.0713803556. The cubic root of 55652665 is about 381.7936098992.

The spelling of 55652665 in words is "fifty-five million, six hundred fifty-two thousand, six hundred sixty-five".

Divisors: 1 5 11130533 55652665