4247553552481 has 4 divisors (see below), whose sum is σ = 4251439695892. Its totient is φ = 4243667409072.

The previous prime is 4247553552479. The next prime is 4247553552497. The reversal of 4247553552481 is 1842553557424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3655591041600 + 591962510881 = 1911960^2 + 769391^2 .

It is a cyclic number.

It is not a de Polignac number, because 4247553552481 - 2¹ = 4247553552479 is a prime.

It is a super-2 number, since 2×4247553552481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247553552401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943070066 + ... + 1943072251.

It is an arithmetic number, because the mean of its divisors is an integer number (1062859923973).

Almost surely, 2^{4247553552481} is an apocalyptic number.

It is an amenable number.

4247553552481 is a deficient number, since it is larger than the sum of its proper divisors (3886143411).

4247553552481 is a wasteful number, since it uses less digits than its factorization.

4247553552481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886143410.

The product of its digits is 26880000, while the sum is 55.

The spelling of 4247553552481 in words is "four trillion, two hundred forty-seven billion, five hundred fifty-three million, five hundred fifty-two thousand, four hundred eighty-one".