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55254245105 = 511050849021
BaseRepresentation
bin110011011101011010…
…001101111011110001
312021121202121110220102
4303131122031323301
51401130041320410
641214454122145
73664152222413
oct633532157361
9167552543812
1055254245105
1121484643184
12a860650355
1352974992b7
1429624949b3
151685cbd2a5
hexcdd68def1

55254245105 has 4 divisors (see below), whose sum is σ = 66305094132. Its totient is φ = 44203396080.

The previous prime is 55254245099. The next prime is 55254245107. The reversal of 55254245105 is 50154245255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23440528609 + 31813716496 = 153103^2 + 178364^2 .

It is not a de Polignac number, because 55254245105 - 24 = 55254245089 is a prime.

It is a super-2 number, since 2×552542451052 (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 (55254245107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525424506 + ... + 5525424515.

It is an arithmetic number, because the mean of its divisors is an integer number (16576273533).

Almost surely, 255254245105 is an apocalyptic number.

It is an amenable number.

55254245105 is a deficient number, since it is larger than the sum of its proper divisors (11050849027).

55254245105 is a wasteful number, since it uses less digits than its factorization.

55254245105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050849026.

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 55254245105 in words is "fifty-five billion, two hundred fifty-four million, two hundred forty-five thousand, one hundred five".

Divisors: 1 5 11050849021 55254245105