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55022151 = 360130517
BaseRepresentation
bin1101000111100…
…1001001000111
310211112102012110
43101321021013
5103041202101
65243152103
71235452302
oct321711107
9124472173
1055022151
1129070a58
1216515633
13b5262b2
147443b39
154c6ccd6
hex3479247

55022151 has 8 divisors (see below), whose sum is σ = 73487344. Its totient is φ = 36619200.

The previous prime is 55022147. The next prime is 55022159. The reversal of 55022151 is 15122055.

55022151 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 not a de Polignac number, because 55022151 - 22 = 55022147 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 (55022159) 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, 13456 + ... + 17061.

It is an arithmetic number, because the mean of its divisors is an integer number (9185918).

Almost surely, 255022151 is an apocalyptic number.

55022151 is a deficient number, since it is larger than the sum of its proper divisors (18465193).

55022151 is a wasteful number, since it uses less digits than its factorization.

55022151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31121.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55022151 is about 7417.6917568742. The cubic root of 55022151 is about 380.3462932843.

The spelling of 55022151 in words is "fifty-five million, twenty-two thousand, one hundred fifty-one".

Divisors: 1 3 601 1803 30517 91551 18340717 55022151