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55026897 = 37922939
BaseRepresentation
bin1101000111101…
…0010011010001
310211112122201020
43101322103101
5103041330042
65243230053
71235502162
oct321722321
9124478636
1055026897
1129074582
1216518329
13b5284c3
147445769
154c6e3ec
hex347a4d1

55026897 has 12 divisors (see below), whose sum is σ = 74334960. Its totient is φ = 36207912.

The previous prime is 55026893. The next prime is 55026929. The reversal of 55026897 is 79862055.

55026897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55026897 - 22 = 55026893 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (55026893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17254 + ... + 20192.

It is an arithmetic number, because the mean of its divisors is an integer number (6194580).

Almost surely, 255026897 is an apocalyptic number.

It is an amenable number.

55026897 is a deficient number, since it is larger than the sum of its proper divisors (19308063).

55026897 is an equidigital number, since it uses as much as digits as its factorization.

55026897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 55026897 is about 7418.0116608159. The cubic root of 55026897 is about 380.3572287081.

The spelling of 55026897 in words is "fifty-five million, twenty-six thousand, eight hundred ninety-seven".

Divisors: 1 3 79 237 2939 6241 8817 18723 232181 696543 18342299 55026897