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55055754 = 2331378427
BaseRepresentation
bin1101001000000…
…1010110001010
310211121010022000
43102001112022
5103043241004
65244011430
71235652255
oct322012612
9124533260
1055055754
1129094226
1216530b76
13b538690
14745209c
154c77c39
hex348158a

55055754 has 32 divisors (see below), whose sum is σ = 131759040. Its totient is φ = 16940016.

The previous prime is 55055731. The next prime is 55055821. The reversal of 55055754 is 45755055.

It is a happy number.

55055754 is a `hidden beast` number, since 5 + 50 + 557 + 54 = 666.

It is a super-2 number, since 2×550557542 = 6062272097017032, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38512 + ... + 39915.

It is an arithmetic number, because the mean of its divisors is an integer number (4117470).

Almost surely, 255055754 is an apocalyptic number.

55055754 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55055754 is an abundant number, since it is smaller than the sum of its proper divisors (76703286).

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

55055754 is a wasteful number, since it uses less digits than its factorization.

55055754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78451 (or 78445 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 55055754 is about 7419.9564688750. The cubic root of 55055754 is about 380.4237055951.

The spelling of 55055754 in words is "fifty-five million, fifty-five thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 702 78427 156854 235281 470562 705843 1019551 1411686 2039102 2117529 3058653 4235058 6117306 9175959 18351918 27527877 55055754