7554564889 has 9 divisors (see below), whose sum is σ = 7899395413. Its totient is φ = 7224193372.

The previous prime is 7554564877. The next prime is 7554564893. The reversal of 7554564889 is 9884654557.

The square root of 7554564889 is 86917.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7554564889 - 2¹⁹ = 7554040601 is a prime.

It is a super-2 number, since 2×7554564889² (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 (7554564859) 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 in 8 ways as a sum of consecutive naturals, for example, 1997202 + ... + 2000980.

Almost surely, 2^7554564889 is an apocalyptic number.

7554564889 is the 86917-th square number.

7554564889 is the 43459-th centered octagonal number.

It is an amenable number.

7554564889 is a deficient number, since it is larger than the sum of its proper divisors (344830524).

7554564889 is an frugal number, since it uses more digits than its factorization.

7554564889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604 (or 3802 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 61.

The cubic root of 7554564889 is about 1962.1693397980.

The spelling of 7554564889 in words is "seven billion, five hundred fifty-four million, five hundred sixty-four thousand, eight hundred eighty-nine".