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55192133 = 2953149241
BaseRepresentation
bin1101001010001…
…0101001000101
310211212001101002
43102202221011
5103112122013
65250543045
71240061003
oct322425105
9124761332
1055192133
1129177737
1216597a85
13b585789
147489a73
154ca3358
hex34a2a45

55192133 has 16 divisors (see below), whose sum is σ = 58806000. Its totient is φ = 51717120.

The previous prime is 55192103. The next prime is 55192141. The reversal of 55192133 is 33129155.

It can be written as a sum of positive squares in 8 ways, for example, as 91204 + 55100929 = 302^2 + 7423^2 .

It is a cyclic number.

It is not a de Polignac number, because 55192133 - 26 = 55192069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55192096 and 55192105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55192103) 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 15 ways as a sum of consecutive naturals, for example, 228893 + ... + 229133.

It is an arithmetic number, because the mean of its divisors is an integer number (3675375).

Almost surely, 255192133 is an apocalyptic number.

55192133 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

55192133 is a deficient number, since it is larger than the sum of its proper divisors (3613867).

55192133 is a wasteful number, since it uses less digits than its factorization.

55192133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 4050, while the sum is 29.

The square root of 55192133 is about 7429.1407982350. The cubic root of 55192133 is about 380.7375633406.

The spelling of 55192133 in words is "fifty-five million, one hundred ninety-two thousand, one hundred thirty-three".

Divisors: 1 29 53 149 241 1537 4321 6989 7897 12773 35909 229013 370417 1041361 1903177 55192133