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55482815 = 517652739
BaseRepresentation
bin1101001110100…
…1100110111111
310212101211010002
43103221212333
5103200422230
65301104515
71242411323
oct323514677
9125354102
1055482815
1129356073
12166b813b
13b657b8b
147523983
154d0e545
hex34e99bf

55482815 has 8 divisors (see below), whose sum is σ = 70495920. Its totient is φ = 41775232.

The previous prime is 55482809. The next prime is 55482821. The reversal of 55482815 is 51828455.

It is an interprime number because it is at equal distance from previous prime (55482809) and next prime (55482821).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55482815 - 26 = 55482751 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326285 + ... + 326454.

It is an arithmetic number, because the mean of its divisors is an integer number (8811990).

Almost surely, 255482815 is an apocalyptic number.

55482815 is a deficient number, since it is larger than the sum of its proper divisors (15013105).

55482815 is a wasteful number, since it uses less digits than its factorization.

55482815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652761.

The product of its digits is 64000, while the sum is 38.

The square root of 55482815 is about 7448.6787418978. The cubic root of 55482815 is about 381.4048071488.

The spelling of 55482815 in words is "fifty-five million, four hundred eighty-two thousand, eight hundred fifteen".

Divisors: 1 5 17 85 652739 3263695 11096563 55482815