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13966553 is a prime number
BaseRepresentation
bin110101010001…
…110011011001
3222021120111202
4311101303121
512033412203
61215203545
7226466546
oct65216331
928246452
1013966553
11797a307
1248165b5
132b80143
141bd7bcd
15135d388
hexd51cd9

13966553 has 2 divisors, whose sum is σ = 13966554. Its totient is φ = 13966552.

The previous prime is 13966483. The next prime is 13966573. The reversal of 13966553 is 35566931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13520329 + 446224 = 3677^2 + 668^2 .

It is an emirp because it is prime and its reverse (35566931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13966553 - 28 = 13966297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13966573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6983276 + 6983277.

It is an arithmetic number, because the mean of its divisors is an integer number (6983277).

Almost surely, 213966553 is an apocalyptic number.

It is an amenable number.

13966553 is a deficient number, since it is larger than the sum of its proper divisors (1).

13966553 is an equidigital number, since it uses as much as digits as its factorization.

13966553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 38.

The square root of 13966553 is about 3737.1851706866. The cubic root of 13966553 is about 240.8221399661.

The spelling of 13966553 in words is "thirteen million, nine hundred sixty-six thousand, five hundred fifty-three".