4243552477 has 2 divisors, whose sum is σ = 4243552478. Its totient is φ = 4243552476.

The previous prime is 4243552457. The next prime is 4243552499. The reversal of 4243552477 is 7742553424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3895132921 + 348419556 = 62411^2 + 18666^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243552477 - 2¹⁹ = 4243028189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243552447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121776238 + 2121776239.

It is an arithmetic number, because the mean of its divisors is an integer number (2121776239).

Almost surely, 2^4243552477 is an apocalyptic number.

It is an amenable number.

4243552477 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243552477 is an equidigital number, since it uses as much as digits as its factorization.

4243552477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 43.

The square root of 4243552477 is about 65142.5550389298. Note that the first 3 decimals coincide. The cubic root of 4243552477 is about 1618.9863695385.

The spelling of 4243552477 in words is "four billion, two hundred forty-three million, five hundred fifty-two thousand, four hundred seventy-seven".