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55385337 = 3721737599
BaseRepresentation
bin1101001101000…
…1110011111001
310212012212101210
43103101303321
5103134312322
65255033333
71241524200
oct323216371
9125185353
1055385337
1129299907
121666b849
13b6226b7
1474da237
154ce070c
hex34d1cf9

55385337 has 48 divisors (see below), whose sum is σ = 93571200. Its totient is φ = 28933632.

The previous prime is 55385327. The next prime is 55385387. The reversal of 55385337 is 73358355.

It is not a de Polignac number, because 55385337 - 24 = 55385321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55385295 and 55385304.

It is not an unprimeable number, because it can be changed into a prime (55385327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92164 + ... + 92762.

It is an arithmetic number, because the mean of its divisors is an integer number (1949400).

Almost surely, 255385337 is an apocalyptic number.

It is an amenable number.

55385337 is a deficient number, since it is larger than the sum of its proper divisors (38185863).

55385337 is a wasteful number, since it uses less digits than its factorization.

55385337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 663 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 55385337 is about 7442.1325572715. The cubic root of 55385337 is about 381.1813122875.

The spelling of 55385337 in words is "fifty-five million, three hundred eighty-five thousand, three hundred thirty-seven".

Divisors: 1 3 7 17 21 37 49 51 111 119 147 259 357 599 629 777 833 1797 1813 1887 2499 4193 4403 5439 10183 12579 13209 22163 29351 30549 30821 66489 71281 88053 92463 155141 213843 376771 465423 498967 1085987 1130313 1496901 2637397 3257961 7912191 18461779 55385337