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55649754 = 234343517
BaseRepresentation
bin1101010001001…
…0010111011010
310212201022010000
43110102113122
5103221243004
65304433430
71244005116
oct324222732
9125638100
1055649754
112945a536
1216778876
13b6b5b64
147568746
154d43c39
hex35125da

55649754 has 20 divisors (see below), whose sum is σ = 124697034. Its totient is φ = 18549864.

The previous prime is 55649747. The next prime is 55649761. The reversal of 55649754 is 45794655.

55649754 is a `hidden beast` number, since 556 + 4 + 97 + 5 + 4 = 666.

55649754 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55649747) and next prime (55649761).

It can be written as a sum of positive squares in only one way, i.e., 28869129 + 26780625 = 5373^2 + 5175^2 .

It is a Curzon 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 9 ways as a sum of consecutive naturals, for example, 171597 + ... + 171920.

Almost surely, 255649754 is an apocalyptic number.

55649754 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55649754 is an abundant number, since it is smaller than the sum of its proper divisors (69047280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55649754 is a wasteful number, since it uses less digits than its factorization.

55649754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343531 (or 343522 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 55649754 is about 7459.8762724324. The cubic root of 55649754 is about 381.7869530117.

The spelling of 55649754 in words is "fifty-five million, six hundred forty-nine thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 162 343517 687034 1030551 2061102 3091653 6183306 9274959 18549918 27824877 55649754