47966549 has 2 divisors, whose sum is σ = 47966550. Its totient is φ = 47966548.

The previous prime is 47966539. The next prime is 47966599. The reversal of 47966549 is 94566974.

It is an a-pointer prime, because the next prime (47966599) can be obtained adding 47966549 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41049649 + 6916900 = 6407^2 + 2630^2 .

It is a cyclic number.

It is not a de Polignac number, because 47966549 - 2¹⁶ = 47901013 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47966497 and 47966506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47966539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23983274 + 23983275.

It is an arithmetic number, because the mean of its divisors is an integer number (23983275).

Almost surely, 2^47966549 is an apocalyptic number.

It is an amenable number.

47966549 is a deficient number, since it is larger than the sum of its proper divisors (1).

47966549 is an equidigital number, since it uses as much as digits as its factorization.

47966549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The square root of 47966549 is about 6925.7886915499. The cubic root of 47966549 is about 363.3396760295.

The spelling of 47966549 in words is "forty-seven million, nine hundred sixty-six thousand, five hundred forty-nine".