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55027973 = 7111354973
BaseRepresentation
bin1101000111101…
…0100100000101
310211112201012002
43101322210011
5103041343343
65243235045
71235505260
oct321724405
9124481162
1055027973
1129075370
1216518a85
13b528b40
147445cd7
154c6e8b8
hex347a905

55027973 has 16 divisors (see below), whose sum is σ = 73885056. Its totient is φ = 39579840.

The previous prime is 55027969. The next prime is 55027979. The reversal of 55027973 is 37972055.

It is a cyclic number.

It is not a de Polignac number, because 55027973 - 22 = 55027969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26486 + ... + 28487.

It is an arithmetic number, because the mean of its divisors is an integer number (4617816).

Almost surely, 255027973 is an apocalyptic number.

It is an amenable number.

55027973 is a deficient number, since it is larger than the sum of its proper divisors (18857083).

55027973 is a wasteful number, since it uses less digits than its factorization.

55027973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55004.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 55027973 is about 7418.0841866347. The cubic root of 55027973 is about 380.3597078697.

The spelling of 55027973 in words is "fifty-five million, twenty-seven thousand, nine hundred seventy-three".

Divisors: 1 7 11 13 77 91 143 1001 54973 384811 604703 714649 4232921 5002543 7861139 55027973