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55049056 = 2531211263
BaseRepresentation
bin1101000111111…
…1101101100000
310211120210002221
43101333231200
5103043032211
65243520424
71235623606
oct321775540
9124523087
1055049056
112908a197
1216529114
13b53560a
14744d876
154c75c71
hex347fb60

55049056 has 48 divisors (see below), whose sum is σ = 112831488. Its totient is φ = 26409600.

The previous prime is 55049053. The next prime is 55049083. The reversal of 55049056 is 65094055.

It is a happy number.

It is a super-2 number, since 2×550490562 = 6060797132982272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55049053) 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, 209181 + ... + 209443.

It is an arithmetic number, because the mean of its divisors is an integer number (2350656).

Almost surely, 255049056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55049056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56415744).

55049056 is an abundant number, since it is smaller than the sum of its proper divisors (57782432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55049056 is a wasteful number, since it uses less digits than its factorization.

55049056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 55049056 is about 7419.5051047897. The cubic root of 55049056 is about 380.4082777114.

The spelling of 55049056 in words is "fifty-five million, forty-nine thousand, fifty-six".

Divisors: 1 2 4 8 16 31 32 62 124 211 248 263 422 496 526 844 992 1052 1688 2104 3376 4208 6541 6752 8153 8416 13082 16306 26164 32612 52328 55493 65224 104656 110986 130448 209312 221972 260896 443944 887888 1720283 1775776 3440566 6881132 13762264 27524528 55049056