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55055541 = 318351847
BaseRepresentation
bin1101001000000…
…1010010110101
310211121010000010
43102001102311
5103043234131
65244010433
71235651532
oct322012265
9124533003
1055055541
1129094052
1216530a19
13b538558
147451d89
154c77b46
hex34814b5

55055541 has 4 divisors (see below), whose sum is σ = 73407392. Its totient is φ = 36703692.

The previous prime is 55055479. The next prime is 55055569. The reversal of 55055541 is 14555055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55055541 - 214 = 55039157 is a prime.

It is a super-2 number, since 2×550555412 = 6062225189605362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55055499 and 55055508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055591) 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 3 ways as a sum of consecutive naturals, for example, 9175921 + ... + 9175926.

It is an arithmetic number, because the mean of its divisors is an integer number (18351848).

Almost surely, 255055541 is an apocalyptic number.

It is an amenable number.

55055541 is a deficient number, since it is larger than the sum of its proper divisors (18351851).

55055541 is a wasteful number, since it uses less digits than its factorization.

55055541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351850.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 55055541 is about 7419.9421156772. The cubic root of 55055541 is about 380.4232149994.

The spelling of 55055541 in words is "fifty-five million, fifty-five thousand, five hundred forty-one".

Divisors: 1 3 18351847 55055541