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55044251 = 317692309
BaseRepresentation
bin1101000111111…
…0100010011011
310211120112111222
43101332202123
5103042404001
65243442255
71235603603
oct321764233
9124515458
1055044251
1129086619
121652638b
13b533382
14744bc03
154c7461b
hex347e89b

55044251 has 8 divisors (see below), whose sum is σ = 56918400. Its totient is φ = 53176320.

The previous prime is 55044229. The next prime is 55044281. The reversal of 55044251 is 15244055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55044251 - 214 = 55027867 is a prime.

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 55044251.

It is not an unprimeable number, because it can be changed into a prime (55044281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22685 + ... + 24993.

It is an arithmetic number, because the mean of its divisors is an integer number (7114800).

Almost surely, 255044251 is an apocalyptic number.

55044251 is a deficient number, since it is larger than the sum of its proper divisors (1874149).

55044251 is a wasteful number, since it uses less digits than its factorization.

55044251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55044251 is about 7419.1812890642. The cubic root of 55044251 is about 380.3972093111.

The spelling of 55044251 in words is "fifty-five million, forty-four thousand, two hundred fifty-one".

Divisors: 1 31 769 2309 23839 71579 1775621 55044251