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55052907 = 3713421479
BaseRepresentation
bin1101001000000…
…0101001101011
310211120222101120
43102000221223
5103043143112
65243550323
71235641050
oct322005153
9124528346
1055052907
1129092078
121652b3a3
13b5372b0
147451027
154c76e8c
hex3480a6b

55052907 has 32 divisors (see below), whose sum is σ = 90746880. Its totient is φ = 28909440.

The previous prime is 55052887. The next prime is 55052911. The reversal of 55052907 is 70925055.

It is not a de Polignac number, because 55052907 - 26 = 55052843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55052947) 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 31 ways as a sum of consecutive naturals, for example, 114694 + ... + 115172.

It is an arithmetic number, because the mean of its divisors is an integer number (2835840).

Almost surely, 255052907 is an apocalyptic number.

55052907 is a deficient number, since it is larger than the sum of its proper divisors (35693973).

55052907 is a wasteful number, since it uses less digits than its factorization.

55052907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 15750, while the sum is 33.

The square root of 55052907 is about 7419.7646189081. The cubic root of 55052907 is about 380.4171480912.

The spelling of 55052907 in words is "fifty-five million, fifty-two thousand, nine hundred seven".

Divisors: 1 3 7 13 21 39 91 273 421 479 1263 1437 2947 3353 5473 6227 8841 10059 16419 18681 38311 43589 114933 130767 201659 604977 1411613 2621567 4234839 7864701 18350969 55052907