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55033056 = 25321314699
BaseRepresentation
bin1101000111101…
…1110011100000
310211112222011100
43101323303200
5103042024211
65243314400
71235526141
oct321736340
9124488140
1055033056
1129079171
121651ba00
13b52b250
147447ac8
154c71156
hex347bce0

55033056 has 72 divisors (see below), whose sum is σ = 168550200. Its totient is φ = 16932096.

The previous prime is 55033049. The next prime is 55033057. The reversal of 55033056 is 65033055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55033057) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3606 + ... + 11093.

It is an arithmetic number, because the mean of its divisors is an integer number (2340975).

Almost surely, 255033056 is an apocalyptic number.

It is an amenable number.

55033056 is an abundant number, since it is smaller than the sum of its proper divisors (113517144).

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

55033056 is a wasteful number, since it uses less digits than its factorization.

55033056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14728 (or 14717 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 27.

The square root of 55033056 is about 7418.4267873991. The cubic root of 55033056 is about 380.3714189369.

Subtracting 55033056 from its reverse (65033055), we obtain a palindrome (9999999).

The spelling of 55033056 in words is "fifty-five million, thirty-three thousand, fifty-six".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 144 156 208 234 288 312 416 468 624 936 1248 1872 3744 14699 29398 44097 58796 88194 117592 132291 176388 191087 235184 264582 352776 382174 470368 529164 573261 705552 764348 1058328 1146522 1411104 1528696 1719783 2116656 2293044 3057392 3439566 4233312 4586088 6114784 6879132 9172176 13758264 18344352 27516528 55033056