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12597172255 = 53768092823
BaseRepresentation
bin10111011101101100…
…11001100000011111
31012111220210122200101
423232312121200133
5201244334003010
65442001041531
7624112124503
oct135666314037
935456718611
1012597172255
115384858a68
1225369262a7
131259ab02a5
1487706a303
154dadd073a
hex2eed9981f

12597172255 has 8 divisors (see below), whose sum is σ = 15525163872. Its totient is φ = 9805366368.

The previous prime is 12597172241. The next prime is 12597172271. The reversal of 12597172255 is 55227179521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12597172255 - 229 = 12060301343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34046227 + ... + 34046596.

It is an arithmetic number, because the mean of its divisors is an integer number (1940645484).

Almost surely, 212597172255 is an apocalyptic number.

12597172255 is a deficient number, since it is larger than the sum of its proper divisors (2927991617).

12597172255 is an equidigital number, since it uses as much as digits as its factorization.

12597172255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68092865.

The product of its digits is 441000, while the sum is 46.

The spelling of 12597172255 in words is "twelve billion, five hundred ninety-seven million, one hundred seventy-two thousand, two hundred fifty-five".

Divisors: 1 5 37 185 68092823 340464115 2519434451 12597172255