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12451550625055 = 517193375783151
BaseRepresentation
bin1011010100110001101001…
…0000000111110100011111
31122002100121222020120002201
42311030122100013310133
53113001233430000210
642252055143032331
72423411014004023
oct265143220076437
948070558216081
1012451550625055
113a70744797863
12149123b13b6a7
136c423a106959
143109303d2383
15168d603a853a
hexb531a407d1f

12451550625055 has 16 divisors (see below), whose sum is σ = 15828978524544. Its totient is φ = 9370434931200.

The previous prime is 12451550625049. The next prime is 12451550625071. The reversal of 12451550625055 is 55052605515421.

12451550625055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12451550625055 - 29 = 12451550624543 is a prime.

It is a super-2 number, since 2×124515506250552 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12451550624996 and 12451550625014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37727271 + ... + 38055880.

It is an arithmetic number, because the mean of its divisors is an integer number (989311157784).

Almost surely, 212451550625055 is an apocalyptic number.

12451550625055 is a deficient number, since it is larger than the sum of its proper divisors (3377427899489).

12451550625055 is a wasteful number, since it uses less digits than its factorization.

12451550625055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75785106.

The product of its (nonzero) digits is 1500000, while the sum is 46.

The spelling of 12451550625055 in words is "twelve trillion, four hundred fifty-one billion, five hundred fifty million, six hundred twenty-five thousand, fifty-five".

Divisors: 1 5 17 85 1933 9665 32861 164305 75783151 378915755 1288313567 6441567835 146488830883 732444154415 2490310125011 12451550625055