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55145255235 = 357525192907
BaseRepresentation
bin110011010110111010…
…011101000101000011
312021100011112012220120
4303112322131011003
51400414141131420
641200002111323
73661356635610
oct632672350503
9167304465816
1055145255235
1121429071504
12a83004b543
13527aa28955
142951c03507
15167b43ed40
hexcd6e9d143

55145255235 has 16 divisors (see below), whose sum is σ = 100837038336. Its totient is φ = 25209259488.

The previous prime is 55145255227. The next prime is 55145255251. The reversal of 55145255235 is 53255254155.

It is not a de Polignac number, because 55145255235 - 23 = 55145255227 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262596349 + ... + 262596558.

It is an arithmetic number, because the mean of its divisors is an integer number (6302314896).

Almost surely, 255145255235 is an apocalyptic number.

55145255235 is a deficient number, since it is larger than the sum of its proper divisors (45691783101).

55145255235 is a wasteful number, since it uses less digits than its factorization.

55145255235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525192922.

The product of its digits is 750000, while the sum is 42.

The spelling of 55145255235 in words is "fifty-five billion, one hundred forty-five million, two hundred fifty-five thousand, two hundred thirty-five".

Divisors: 1 3 5 7 15 21 35 105 525192907 1575578721 2625964535 3676350349 7877893605 11029051047 18381751745 55145255235