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55124689513 = 2344946111579
BaseRepresentation
bin110011010101101100…
…000000001001101001
312021021201211101001011
4303111230000021221
51400343410031023
641153545223521
73661020062335
oct632554001151
9167251741034
1055124689513
11214184a5143
12a825191ba1
1352766a7b9a
14294d1ac7c5
15167972b50d
hexcd5b00269

55124689513 has 16 divisors (see below), whose sum is σ = 57779568000. Its totient is φ = 52491873280.

The previous prime is 55124689511. The next prime is 55124689517. The reversal of 55124689513 is 31598642155.

It is not a de Polignac number, because 55124689513 - 21 = 55124689511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55124689511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4754958 + ... + 4766536.

It is an arithmetic number, because the mean of its divisors is an integer number (3611223000).

Almost surely, 255124689513 is an apocalyptic number.

It is an amenable number.

55124689513 is a deficient number, since it is larger than the sum of its proper divisors (2654878487).

55124689513 is a wasteful number, since it uses less digits than its factorization.

55124689513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12512.

The product of its digits is 1296000, while the sum is 49.

The spelling of 55124689513 in words is "fifty-five billion, one hundred twenty-four million, six hundred eighty-nine thousand, five hundred thirteen".

Divisors: 1 23 449 461 10327 10603 11579 206989 266317 4760747 5198971 5337919 119576333 122772137 2396725631 55124689513