Search a number
-
+
52505205453 = 346131193407
BaseRepresentation
bin110000111001100011…
…011101101011001101
312000112011210210110000
4300321203131223031
51330012313033303
640042012434513
73536061611511
oct607143355315
9160464723400
1052505205453
11202a3901a88
12a213a78a39
134c49aa260c
142781338141
15157479cda3
hexc398ddacd

52505205453 has 40 divisors (see below), whose sum is σ = 79768465920. Its totient is φ = 34408501920.

The previous prime is 52505205439. The next prime is 52505205463. The reversal of 52505205453 is 35450250525.

52505205453 is a `hidden beast` number, since 52 + 505 + 2 + 0 + 54 + 53 = 666.

It is not a de Polignac number, because 52505205453 - 216 = 52505139917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505205463) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15409276 + ... + 15412682.

It is an arithmetic number, because the mean of its divisors is an integer number (1994211648).

Almost surely, 252505205453 is an apocalyptic number.

It is an amenable number.

52505205453 is a deficient number, since it is larger than the sum of its proper divisors (27263260467).

52505205453 is a wasteful number, since it uses less digits than its factorization.

52505205453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6599 (or 6590 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 36.

Adding to 52505205453 its reverse (35450250525), we get a palindrome (87955455978).

The spelling of 52505205453 in words is "fifty-two billion, five hundred five million, two hundred five thousand, four hundred fifty-three".

Divisors: 1 3 9 27 61 81 183 549 1647 3119 3407 4941 9357 10221 28071 30663 84213 91989 190259 207827 252639 275967 570777 623481 1712331 1870443 5136993 5611329 10626433 15410979 16833987 31879299 95637897 286913691 648212413 860741073 1944637239 5833911717 17501735151 52505205453