47566513 has 2 divisors, whose sum is σ = 47566514. Its totient is φ = 47566512.

The previous prime is 47566511. The next prime is 47566549. The reversal of 47566513 is 31566574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45792289 + 1774224 = 6767^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 47566513 - 2¹ = 47566511 is a prime.

Together with 47566511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47566511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23783256 + 23783257.

It is an arithmetic number, because the mean of its divisors is an integer number (23783257).

Almost surely, 2^47566513 is an apocalyptic number.

It is an amenable number.

47566513 is a deficient number, since it is larger than the sum of its proper divisors (1).

47566513 is an equidigital number, since it uses as much as digits as its factorization.

47566513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 47566513 is about 6896.8480482029. The cubic root of 47566513 is about 362.3267833553.

The spelling of 47566513 in words is "forty-seven million, five hundred sixty-six thousand, five hundred thirteen".