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12500551255 = 54096112739
BaseRepresentation
bin10111010010001011…
…10100011001010111
31012021011222210120211
423221011310121113
5201100120120010
65424230110251
7621526634563
oct135105643127
935234883524
1012500551255
1153352651a5
12250a4ab387
131242a807ba
148682b86a3
154d269708a
hex2e9174657

12500551255 has 8 divisors (see below), whose sum is σ = 15037340400. Its totient is φ = 9975988416.

The previous prime is 12500551253. The next prime is 12500551279. The reversal of 12500551255 is 55215500521.

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 12500551255 - 21 = 12500551253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500551253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054325 + ... + 3058414.

It is an arithmetic number, because the mean of its divisors is an integer number (1879667550).

Almost surely, 212500551255 is an apocalyptic number.

12500551255 is a deficient number, since it is larger than the sum of its proper divisors (2536789145).

12500551255 is an equidigital number, since it uses as much as digits as its factorization.

12500551255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113153.

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 12500551255 in words is "twelve billion, five hundred million, five hundred fifty-one thousand, two hundred fifty-five".

Divisors: 1 5 409 2045 6112739 30563695 2500110251 12500551255