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55072407017 = 232394452479
BaseRepresentation
bin110011010010100100…
…100011110111101001
312021011002110010221102
4303102210203313221
51400242014011032
641144440451145
73656513510255
oct632244436751
9167132403842
1055072407017
11213a0a35571
12a80b779ab5
1352689008b4
14294627d265
151674d50362
hexcd2923de9

55072407017 has 4 divisors (see below), whose sum is σ = 57466859520. Its totient is φ = 52677954516.

The previous prime is 55072407011. The next prime is 55072407023. The reversal of 55072407017 is 71070427055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (55072407011) and next prime (55072407023).

It is a cyclic number.

It is not a de Polignac number, because 55072407017 - 26 = 55072406953 is a prime.

It is a super-2 number, since 2×550724070172 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55072407011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197226217 + ... + 1197226262.

It is an arithmetic number, because the mean of its divisors is an integer number (14366714880).

Almost surely, 255072407017 is an apocalyptic number.

It is an amenable number.

55072407017 is a deficient number, since it is larger than the sum of its proper divisors (2394452503).

55072407017 is a wasteful number, since it uses less digits than its factorization.

55072407017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2394452502.

The product of its (nonzero) digits is 68600, while the sum is 38.

The spelling of 55072407017 in words is "fifty-five billion, seventy-two million, four hundred seven thousand, seventeen".

Divisors: 1 23 2394452479 55072407017