47193557 has 2 divisors, whose sum is σ = 47193558. Its totient is φ = 47193556.

The previous prime is 47193533. The next prime is 47193571. The reversal of 47193557 is 75539174.

47193557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34562641 + 12630916 = 5879^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 47193557 - 2⁸ = 47193301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47193577) 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, 23596778 + 23596779.

It is an arithmetic number, because the mean of its divisors is an integer number (23596779).

Almost surely, 2^47193557 is an apocalyptic number.

It is an amenable number.

47193557 is a deficient number, since it is larger than the sum of its proper divisors (1).

47193557 is an equidigital number, since it uses as much as digits as its factorization.

47193557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 47193557 is about 6869.7566914702. The cubic root of 47193557 is about 361.3773291888.

The spelling of 47193557 in words is "forty-seven million, one hundred ninety-three thousand, five hundred fifty-seven".