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55739752545 = 3543132765123
BaseRepresentation
bin110011111010010110…
…010010000001100001
312022212121011210220110
4303322112102001201
51403123334040140
641335000201533
74012166036121
oct637226220141
9168777153813
1055739752545
11217037010a4
12a9771692a9
135343c489c9
1429aab56c81
1516b3722380
hexcfa592061

55739752545 has 32 divisors (see below), whose sum is σ = 91327813632. Its totient is φ = 29014195392.

The previous prime is 55739752517. The next prime is 55739752559. The reversal of 55739752545 is 54525793755.

It is not a de Polignac number, because 55739752545 - 25 = 55739752513 is a prime.

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, 823354 + ... + 888476.

It is an arithmetic number, because the mean of its divisors is an integer number (2853994176).

Almost surely, 255739752545 is an apocalyptic number.

It is an amenable number.

55739752545 is a deficient number, since it is larger than the sum of its proper divisors (35588061087).

55739752545 is a wasteful number, since it uses less digits than its factorization.

55739752545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66501.

The product of its digits is 33075000, while the sum is 57.

The spelling of 55739752545 in words is "fifty-five billion, seven hundred thirty-nine million, seven hundred fifty-two thousand, five hundred forty-five".

Divisors: 1 3 5 15 43 129 215 645 1327 3981 6635 19905 57061 65123 171183 195369 285305 325615 855915 976845 2800289 8400867 14001445 42004335 86418221 259254663 432091105 1296273315 3715983503 11147950509 18579917515 55739752545