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55417471455 = 35139161916417
BaseRepresentation
bin110011100111001000…
…111000000111011111
312022001010202020100210
4303213020320013133
51401443333041310
641243004423503
74001203510113
oct634710700737
9168033666323
1055417471455
1121558799595
12a8a7247b93
1352c2249438
14297a023743
1516952b1820
hexce72381df

55417471455 has 32 divisors (see below), whose sum is σ = 89366457600. Its totient is φ = 29323441152.

The previous prime is 55417471433. The next prime is 55417471519.

55417471455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55417471455 - 26 = 55417471391 is a prime.

It is a super-2 number, since 2×554174714552 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3367407 + ... + 3383823.

It is an arithmetic number, because the mean of its divisors is an integer number (2792701800).

Almost surely, 255417471455 is an apocalyptic number.

55417471455 is a deficient number, since it is larger than the sum of its proper divisors (33948986145).

55417471455 is a wasteful number, since it uses less digits than its factorization.

55417471455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183.

The product of its digits is 1960000, while the sum is 48.

The spelling of 55417471455 in words is "fifty-five billion, four hundred seventeen million, four hundred seventy-one thousand, four hundred fifty-five".

Divisors: 1 3 5 15 139 417 695 1619 2085 4857 8095 16417 24285 49251 82085 225041 246255 675123 1125205 2281963 3375615 6845889 11409815 26579123 34229445 79737369 132895615 398686845 3694498097 11083494291 18472490485 55417471455