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55144000255 = 553827251621
BaseRepresentation
bin110011010110110101…
…101010101011111111
312021100002011110101211
4303112311222223333
51400413331002010
641155515145251
73661343161021
oct632665525377
9167302143354
1055144000255
1121428394633
12a82b745227
13527a6a9666
142951998011
15167b29308a
hexcd6d6aaff

55144000255 has 16 divisors (see below), whose sum is σ = 67503137184. Its totient is φ = 43230328960.

The previous prime is 55144000253. The next prime is 55144000283. The reversal of 55144000255 is 55200044155.

It is not a de Polignac number, because 55144000255 - 21 = 55144000253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144000253) 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, 93345 + ... + 344965.

It is an arithmetic number, because the mean of its divisors is an integer number (4218946074).

Almost surely, 255144000255 is an apocalyptic number.

55144000255 is a deficient number, since it is larger than the sum of its proper divisors (12359136929).

55144000255 is a wasteful number, since it uses less digits than its factorization.

55144000255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252506.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 55144000255 in words is "fifty-five billion, one hundred forty-four million, two hundred fifty-five", and thus it is an aban number.

Divisors: 1 5 53 265 827 4135 43831 219155 251621 1258105 13335913 66679565 208090567 1040452835 11028800051 55144000255