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55975423 = 729275741
BaseRepresentation
bin1101010110000…
…1110111111111
310220022211211211
43111201313333
5103312203143
65315425251
71246532440
oct325416777
9126284754
1055975423
1129662189
12168b5227
13b79b16a
1476112c7
154daa49d
hex3561dff

55975423 has 8 divisors (see below), whose sum is σ = 66178080. Its totient is φ = 46324320.

The previous prime is 55975421. The next prime is 55975433. The reversal of 55975423 is 32457955.

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

It is not a de Polignac number, because 55975423 - 21 = 55975421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55975421) 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, 137668 + ... + 138073.

It is an arithmetic number, because the mean of its divisors is an integer number (8272260).

Almost surely, 255975423 is an apocalyptic number.

55975423 is a deficient number, since it is larger than the sum of its proper divisors (10202657).

55975423 is a wasteful number, since it uses less digits than its factorization.

55975423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275777.

The product of its digits is 189000, while the sum is 40.

The square root of 55975423 is about 7481.6724734514. The cubic root of 55975423 is about 382.5302591865.

The spelling of 55975423 in words is "fifty-five million, nine hundred seventy-five thousand, four hundred twenty-three".

Divisors: 1 7 29 203 275741 1930187 7996489 55975423