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55874157 = 3431812393
BaseRepresentation
bin1101010100100…
…1001001101101
310220010200221020
43111021021231
5103300433112
65313324353
71245631263
oct325111155
9126120836
1055874157
11295a3099
12168666b9
13b764041
1475c6433
154d8a48c
hex354926d

55874157 has 16 divisors (see below), whose sum is σ = 76684608. Its totient is φ = 36167040.

The previous prime is 55874149. The next prime is 55874167. The reversal of 55874157 is 75147855.

55874157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55874157 - 23 = 55874149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55874167) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22153 + ... + 24545.

It is an arithmetic number, because the mean of its divisors is an integer number (4792788).

Almost surely, 255874157 is an apocalyptic number.

It is an amenable number.

55874157 is a deficient number, since it is larger than the sum of its proper divisors (20810451).

55874157 is a wasteful number, since it uses less digits than its factorization.

55874157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620.

The product of its digits is 196000, while the sum is 42.

The square root of 55874157 is about 7474.9018053751. The cubic root of 55874157 is about 382.2994394758.

The spelling of 55874157 in words is "fifty-five million, eight hundred seventy-four thousand, one hundred fifty-seven".

Divisors: 1 3 43 129 181 543 2393 7179 7783 23349 102899 308697 433133 1299399 18624719 55874157