7542468553 has 2 divisors, whose sum is σ = 7542468554. Its totient is φ = 7542468552.

The previous prime is 7542468541. The next prime is 7542468581. The reversal of 7542468553 is 3558642457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5838182464 + 1704286089 = 76408^2 + 41283^2 .

It is an emirp because it is prime and its reverse (3558642457) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7542468553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7542468497 and 7542468506.

It is not a weakly prime, because it can be changed into another prime (7542468533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771234276 + 3771234277.

It is an arithmetic number, because the mean of its divisors is an integer number (3771234277).

Almost surely, 2^7542468553 is an apocalyptic number.

It is an amenable number.

7542468553 is a deficient number, since it is larger than the sum of its proper divisors (1).

7542468553 is an equidigital number, since it uses as much as digits as its factorization.

7542468553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032000, while the sum is 49.

The square root of 7542468553 is about 86847.3865640181. The cubic root of 7542468553 is about 1961.1215080384.

The spelling of 7542468553 in words is "seven billion, five hundred forty-two million, four hundred sixty-eight thousand, five hundred fifty-three".