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55607951 = 723215017
BaseRepresentation
bin1101010000100…
…0001010001111
310212122011202202
43110020022033
5103213423301
65303512115
71243442210
oct324101217
9125564682
1055607951
1129431093
121675863b
13b69cb19
147557407
154d3666b
hex350828f

55607951 has 12 divisors (see below), whose sum is σ = 66439632. Its totient is φ = 45588576.

The previous prime is 55607941. The next prime is 55607953. The reversal of 55607951 is 15970655.

It is not a de Polignac number, because 55607951 - 210 = 55606927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55607953) by changing a digit.

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, 3806 + ... + 11211.

It is an arithmetic number, because the mean of its divisors is an integer number (5536636).

Almost surely, 255607951 is an apocalyptic number.

55607951 is a deficient number, since it is larger than the sum of its proper divisors (10831681).

55607951 is a wasteful number, since it uses less digits than its factorization.

55607951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15070 (or 15047 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 55607951 is about 7457.0738899383. The cubic root of 55607951 is about 381.6913321164.

The spelling of 55607951 in words is "fifty-five million, six hundred seven thousand, nine hundred fifty-one".

Divisors: 1 7 23 161 529 3703 15017 105119 345391 2417737 7943993 55607951