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55647051 = 3236712037
BaseRepresentation
bin1101010001000…
…1101101001011
310212201011101220
43110101231023
5103221201201
65304413123
71243664205
oct324215513
9125634356
1055647051
11294584a9
12167771a3
13b6b4865
147567775
154d43036
hex3511b4b

55647051 has 16 divisors (see below), whose sum is σ = 78584064. Its totient is φ = 34952544.

The previous prime is 55647049. The next prime is 55647073. The reversal of 55647051 is 15074655.

55647051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55647051 - 21 = 55647049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55647041) 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 15 ways as a sum of consecutive naturals, for example, 1396 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (4911504).

Almost surely, 255647051 is an apocalyptic number.

55647051 is a deficient number, since it is larger than the sum of its proper divisors (22937013).

55647051 is a wasteful number, since it uses less digits than its factorization.

55647051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55647051 is about 7459.6951010078. The cubic root of 55647051 is about 381.7807715718.

The spelling of 55647051 in words is "fifty-five million, six hundred forty-seven thousand, fifty-one".

Divisors: 1 3 23 67 69 201 1541 4623 12037 36111 276851 806479 830553 2419437 18549017 55647051