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55510159 = 262121179
BaseRepresentation
bin1101001111000…
…0010010001111
310212110012121211
43103300102033
5103202311114
65301435251
71242554125
oct323602217
9125405554
1055510159
1129374671
121670bb27
13b667463
14752d915
154d176c4
hex34f048f

55510159 has 4 divisors (see below), whose sum is σ = 55533960. Its totient is φ = 55486360.

The previous prime is 55510127. The next prime is 55510177. The reversal of 55510159 is 95101555.

55510159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55510159 - 25 = 55510127 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55510159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510859) 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 3 ways as a sum of consecutive naturals, for example, 7969 + ... + 13210.

It is an arithmetic number, because the mean of its divisors is an integer number (13883490).

Almost surely, 255510159 is an apocalyptic number.

55510159 is a deficient number, since it is larger than the sum of its proper divisors (23801).

55510159 is a wasteful number, since it uses less digits than its factorization.

55510159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23800.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 55510159 is about 7450.5140091137. The cubic root of 55510159 is about 381.4674536952.

The spelling of 55510159 in words is "fifty-five million, five hundred ten thousand, one hundred fifty-nine".

Divisors: 1 2621 21179 55510159