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55608449 = 1318123633
BaseRepresentation
bin1101010000100…
…0010010000001
310212122012110012
43110020102001
5103213432244
65303514305
71243443521
oct324102201
9125565405
1055608449
11294314a6
1216758995
13b6a0110
147557681
154d3689e
hex3508481

55608449 has 8 divisors (see below), whose sum is σ = 60219432. Its totient is φ = 51045120.

The previous prime is 55608433. The next prime is 55608467. The reversal of 55608449 is 94480655.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 552049 + 55056400 = 743^2 + 7420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55608449 - 24 = 55608433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55608409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9464 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (7527429).

Almost surely, 255608449 is an apocalyptic number.

It is an amenable number.

55608449 is a deficient number, since it is larger than the sum of its proper divisors (4610983).

55608449 is a wasteful number, since it uses less digits than its factorization.

55608449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23827.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 55608449 is about 7457.1072809770. The cubic root of 55608449 is about 381.6924715321.

The spelling of 55608449 in words is "fifty-five million, six hundred eight thousand, four hundred forty-nine".

Divisors: 1 13 181 2353 23633 307229 4277573 55608449