47975549 has 2 divisors, whose sum is σ = 47975550. Its totient is φ = 47975548.

The previous prime is 47975533. The next prime is 47975567. The reversal of 47975549 is 94557974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27227524 + 20748025 = 5218^2 + 4555^2 .

It is a cyclic number.

It is not a de Polignac number, because 47975549 - 2⁴ = 47975533 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 47975497 and 47975506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47975509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23987774 + 23987775.

It is an arithmetic number, because the mean of its divisors is an integer number (23987775).

Almost surely, 2^47975549 is an apocalyptic number.

It is an amenable number.

47975549 is a deficient number, since it is larger than the sum of its proper divisors (1).

47975549 is an equidigital number, since it uses as much as digits as its factorization.

47975549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 50.

The square root of 47975549 is about 6926.4384065694. The cubic root of 47975549 is about 363.3623991748.

The spelling of 47975549 in words is "forty-seven million, nine hundred seventy-five thousand, five hundred forty-nine".