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55287627 = 322398231
BaseRepresentation
bin1101001011100…
…1111101001011
310212000220100220
43102321331023
5103123201002
65253001123
71240636263
oct322717513
9125026326
1055287627
112923245a
12166231a3
13b5ba095
1474b27a3
154cc17bc
hex34b9f4b

55287627 has 8 divisors (see below), whose sum is σ = 73758720. Its totient is φ = 36837480.

The previous prime is 55287599. The next prime is 55287643. The reversal of 55287627 is 72678255.

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

It is not a de Polignac number, because 55287627 - 210 = 55286603 is a prime.

It is a super-2 number, since 2×552876272 = 6113443398582258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55287227) 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, 2602 + ... + 10832.

It is an arithmetic number, because the mean of its divisors is an integer number (9219840).

Almost surely, 255287627 is an apocalyptic number.

55287627 is a deficient number, since it is larger than the sum of its proper divisors (18471093).

55287627 is a wasteful number, since it uses less digits than its factorization.

55287627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10473.

The product of its digits is 235200, while the sum is 42.

The square root of 55287627 is about 7435.5650087939. The cubic root of 55287627 is about 380.9570221773.

The spelling of 55287627 in words is "fifty-five million, two hundred eighty-seven thousand, six hundred twenty-seven".

Divisors: 1 3 2239 6717 8231 24693 18429209 55287627