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55424525525 = 522216981021
BaseRepresentation
bin110011100111100011…
…110010010011010101
312022001122000121201122
4303213203302103111
51402002134304100
641243415533325
74001320456655
oct634743622325
9168048017648
1055424525525
11215617773a6
12a8a968a245
1352c3849145
14297ad3c365
151695c06985
hexce78f24d5

55424525525 has 6 divisors (see below), whose sum is σ = 68726411682. Its totient is φ = 44339620400.

The previous prime is 55424525521. The next prime is 55424525537. The reversal of 55424525525 is 52552542455.

It can be written as a sum of positive squares in 3 ways, for example, as 14190289 + 55410335236 = 3767^2 + 235394^2 .

It is not a de Polignac number, because 55424525525 - 22 = 55424525521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55424525521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1108490486 + ... + 1108490535.

It is an arithmetic number, because the mean of its divisors is an integer number (11454401947).

Almost surely, 255424525525 is an apocalyptic number.

It is an amenable number.

55424525525 is a deficient number, since it is larger than the sum of its proper divisors (13301886157).

55424525525 is a wasteful number, since it uses less digits than its factorization.

55424525525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216981031 (or 2216981026 counting only the distinct ones).

The product of its digits is 2000000, while the sum is 44.

The spelling of 55424525525 in words is "fifty-five billion, four hundred twenty-four million, five hundred twenty-five thousand, five hundred twenty-five".

Divisors: 1 5 25 2216981021 11084905105 55424525525