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52780030025 = 522111201201
BaseRepresentation
bin110001001001111011…
…110101100001001001
312001020022221022212212
4301021323311201021
51331043141430100
640125151114505
73545636565362
oct611173654111
9161208838785
1052780030025
1120424a50828
12a28bb12a35
134c919c73c8
1427a9a36b69
15158d987635
hexc49ef5849

52780030025 has 6 divisors (see below), whose sum is σ = 65447237262. Its totient is φ = 42224024000.

The previous prime is 52780030013. The next prime is 52780030097. The reversal of 52780030025 is 52003008725.

52780030025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 21904 + 52780008121 = 148^2 + 229739^2 .

It is not a de Polignac number, because 52780030025 - 212 = 52780025929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52780029973 and 52780030000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1055600576 + ... + 1055600625.

It is an arithmetic number, because the mean of its divisors is an integer number (10907872877).

Almost surely, 252780030025 is an apocalyptic number.

It is an amenable number.

52780030025 is a deficient number, since it is larger than the sum of its proper divisors (12667207237).

52780030025 is a wasteful number, since it uses less digits than its factorization.

52780030025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111201211 (or 2111201206 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 52780030025 in words is "fifty-two billion, seven hundred eighty million, thirty thousand, twenty-five".

Divisors: 1 5 25 2111201201 10556006005 52780030025