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55055504 = 24731101157
BaseRepresentation
bin1101001000000…
…1010010010000
310211121002221202
43102001102100
5103043234004
65244010332
71235651450
oct322012220
9124532852
1055055504
1129094019
12165309a8
13b53852a
147451d60
154c77b1e
hex3481490

55055504 has 80 divisors (see below), whose sum is σ = 127896576. Its totient is φ = 22464000.

The previous prime is 55055479. The next prime is 55055569. The reversal of 55055504 is 40555055.

It is a super-2 number, since 2×550555042 = 6062217041388032, which contains 22 as substring.

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, 350594 + ... + 350750.

Almost surely, 255055504 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 55055504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63948288).

55055504 is an abundant number, since it is smaller than the sum of its proper divisors (72841072).

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

55055504 is a wasteful number, since it uses less digits than its factorization.

55055504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 55055504 is about 7419.9396223959. The cubic root of 55055504 is about 380.4231297784.

The spelling of 55055504 in words is "fifty-five million, fifty-five thousand, five hundred four".

Divisors: 1 2 4 7 8 14 16 28 31 56 62 101 112 124 157 202 217 248 314 404 434 496 628 707 808 868 1099 1256 1414 1616 1736 2198 2512 2828 3131 3472 4396 4867 5656 6262 8792 9734 11312 12524 15857 17584 19468 21917 25048 31714 34069 38936 43834 50096 63428 68138 77872 87668 110999 126856 136276 175336 221998 253712 272552 350672 443996 491567 545104 887992 983134 1775984 1966268 3440969 3932536 6881938 7865072 13763876 27527752 55055504