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55049495 = 571155069
BaseRepresentation
bin1101000111111…
…1110100010111
310211120210201012
43101333310113
5103043040440
65243522435
71235625104
oct321776427
9124523635
1055049495
112908a556
121652941b
13b535887
14744daab
154c75e65
hex347fd17

55049495 has 8 divisors (see below), whose sum is σ = 66990240. Its totient is φ = 43419040.

The previous prime is 55049473. The next prime is 55049497. The reversal of 55049495 is 59494055.

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

It is not a de Polignac number, because 55049495 - 26 = 55049431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55049497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77180 + ... + 77889.

It is an arithmetic number, because the mean of its divisors is an integer number (8373780).

Almost surely, 255049495 is an apocalyptic number.

55049495 is a deficient number, since it is larger than the sum of its proper divisors (11940745).

55049495 is a wasteful number, since it uses less digits than its factorization.

55049495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155145.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 55049495 is about 7419.5346889141. The cubic root of 55049495 is about 380.4092889233.

The spelling of 55049495 in words is "fifty-five million, forty-nine thousand, four hundred ninety-five".

Divisors: 1 5 71 355 155069 775345 11009899 55049495