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55553057 = 759913249
BaseRepresentation
bin1101001111101…
…0110000100001
310212112101110122
43103322300201
5103210144212
65302410025
71243123160
oct323726041
9125471418
1055553057
11293a391a
1216730915
13b680b41
1475413d7
154d25272
hex34fac21

55553057 has 8 divisors (see below), whose sum is σ = 63600000. Its totient is φ = 47533824.

The previous prime is 55553053. The next prime is 55553081. The reversal of 55553057 is 75035555.

55553057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55553057 - 22 = 55553053 is a prime.

It is a super-3 number, since 3×555530573 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55553053) 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 7 ways as a sum of consecutive naturals, for example, 2432 + ... + 10817.

It is an arithmetic number, because the mean of its divisors is an integer number (7950000).

Almost surely, 255553057 is an apocalyptic number.

It is an amenable number.

55553057 is a deficient number, since it is larger than the sum of its proper divisors (8046943).

55553057 is a wasteful number, since it uses less digits than its factorization.

55553057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13855.

The product of its (nonzero) digits is 65625, while the sum is 35.

The square root of 55553057 is about 7453.3923149127. The cubic root of 55553057 is about 381.5656938344.

The spelling of 55553057 in words is "fifty-five million, five hundred fifty-three thousand, fifty-seven".

Divisors: 1 7 599 4193 13249 92743 7936151 55553057