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55910485 = 511182097
BaseRepresentation
bin1101010101001…
…0000001010101
310220012112202201
43111102001111
5103303113420
65314204501
71246142221
oct325220125
9126175681
1055910485
1129618414
1216883731
13b777737
1475d5781
154d9610a
hex3552055

55910485 has 4 divisors (see below), whose sum is σ = 67092588. Its totient is φ = 44728384.

The previous prime is 55910473. The next prime is 55910489. The reversal of 55910485 is 58401955.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40220964 + 15689521 = 6342^2 + 3961^2 .

It is a cyclic number.

It is not a de Polignac number, because 55910485 - 213 = 55902293 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 (55910489) 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, 5591044 + ... + 5591053.

It is an arithmetic number, because the mean of its divisors is an integer number (16773147).

Almost surely, 255910485 is an apocalyptic number.

It is an amenable number.

55910485 is a deficient number, since it is larger than the sum of its proper divisors (11182103).

55910485 is a wasteful number, since it uses less digits than its factorization.

55910485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182102.

The product of its (nonzero) digits is 36000, while the sum is 37.

The square root of 55910485 is about 7477.3314089988. The cubic root of 55910485 is about 382.3822754174.

The spelling of 55910485 in words is "fifty-five million, nine hundred ten thousand, four hundred eighty-five".

Divisors: 1 5 11182097 55910485