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55606849 = 74572
BaseRepresentation
bin1101010000011…
…1111001000001
310212122010020221
43110013321001
5103213404344
65303503041
71243436044
oct324077101
9125563227
1055606849
1129430281
1216757a81
13b69c47c
147556c5b
154d36184
hex3507e41

55606849 has 3 divisors (see below), whose sum is σ = 55614307. Its totient is φ = 55599392.

The previous prime is 55606841. The next prime is 55606853. The reversal of 55606849 is 94860655.

The square root of 55606849 is 7457.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 38837824 = 4095^2 + 6232^2 .

It is not a de Polignac number, because 55606849 - 23 = 55606841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55606841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3729 + ... + 11185.

Almost surely, 255606849 is an apocalyptic number.

55606849 is the 7457-th square number.

55606849 is the 3729-th centered octagonal number.

It is an amenable number.

55606849 is a deficient number, since it is larger than the sum of its proper divisors (7458).

55606849 is an frugal number, since it uses more digits than its factorization.

55606849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14914 (or 7457 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The cubic root of 55606849 is about 381.6888107346.

The spelling of 55606849 in words is "fifty-five million, six hundred six thousand, eight hundred forty-nine".

Divisors: 1 7457 55606849