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55315251355 = 57131720993407
BaseRepresentation
bin110011100001000010…
…111100000010011011
312021210000101220202011
4303201002330002123
51401241201020410
641224513450351
73665522610250
oct634102740233
9167700356664
1055315251355
1121506021071
12a878b709b7
1352a7009280
14296a615427
15168b31e18a
hexce10bc09b

55315251355 has 64 divisors (see below), whose sum is σ = 86568652800. Its totient is φ = 32927791104.

The previous prime is 55315251349. The next prime is 55315251443.

55315251355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55315251355 - 29 = 55315250843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16234062 + ... + 16237468.

It is an arithmetic number, because the mean of its divisors is an integer number (1352635200).

Almost surely, 255315251355 is an apocalyptic number.

55315251355 is a deficient number, since it is larger than the sum of its proper divisors (31253401445).

55315251355 is a wasteful number, since it uses less digits than its factorization.

55315251355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548.

The product of its digits is 281250, while the sum is 40.

The spelling of 55315251355 in words is "fifty-five billion, three hundred fifteen million, two hundred fifty-one thousand, three hundred fifty-five".

Divisors: 1 5 7 13 17 35 65 85 91 119 221 455 595 1105 1547 2099 3407 7735 10495 14693 17035 23849 27287 35683 44291 57919 73465 119245 136435 178415 191009 221455 249781 289595 310037 405433 463879 752947 955045 1248905 1550185 2027165 2319395 3247153 3764735 5270629 7151293 16235765 26353145 35756465 50059051 92966809 121571981 250295255 464834045 607859905 650767663 851003867 1580435753 3253838315 4255019335 7902178765 11063050271 55315251355