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55608556 = 2213902139
BaseRepresentation
bin1101010000100…
…0010011101100
310212122012121011
43110020103230
5103213433211
65303515004
71243444033
oct324102354
9125565534
1055608556
1129431593
1216758a64
13b6a0193
14755771a
154d36921
hex35084ec

55608556 has 6 divisors (see below), whose sum is σ = 97314980. Its totient is φ = 27804276.

The previous prime is 55608533. The next prime is 55608557. The reversal of 55608556 is 65580655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55608557) 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 as a sum of consecutive naturals, namely, 6951066 + ... + 6951073.

Almost surely, 255608556 is an apocalyptic number.

It is an amenable number.

55608556 is a deficient number, since it is larger than the sum of its proper divisors (41706424).

55608556 is a wasteful number, since it uses less digits than its factorization.

55608556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13902143 (or 13902141 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 40.

The square root of 55608556 is about 7457.1144553373. The cubic root of 55608556 is about 381.6927163454.

The spelling of 55608556 in words is "fifty-five million, six hundred eight thousand, five hundred fifty-six".

Divisors: 1 2 4 13902139 27804278 55608556