7552818481 has 16 divisors (see below), whose sum is σ = 8306761680. Its totient is φ = 6825139200.

The previous prime is 7552818467. The next prime is 7552818487. The reversal of 7552818481 is 1848182557.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 15800625 + 7537017856 = 3975^2 + 86816^2 .

It is a cyclic number.

It is not a de Polignac number, because 7552818481 - 2⁷ = 7552818353 is a prime.

It is a super-2 number, since 2×7552818481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7552818487) 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 in 15 ways as a sum of consecutive naturals, for example, 84541 + ... + 149173.

It is an arithmetic number, because the mean of its divisors is an integer number (519172605).

Almost surely, 2^7552818481 is an apocalyptic number.

It is an amenable number.

7552818481 is a deficient number, since it is larger than the sum of its proper divisors (753943199).

7552818481 is a wasteful number, since it uses less digits than its factorization.

7552818481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64836.

The product of its digits is 716800, while the sum is 49.

The square root of 7552818481 is about 86906.9530072249. The cubic root of 7552818481 is about 1962.0181282514.

The spelling of 7552818481 in words is "seven billion, five hundred fifty-two million, eight hundred eighteen thousand, four hundred eighty-one".