9554545551 has 8 divisors (see below), whose sum is σ = 12813032880. Its totient is φ = 6332877632.

The previous prime is 9554545537. The next prime is 9554545591. The reversal of 9554545551 is 1555454559.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9554545551 - 2⁶ = 9554545487 is a prime.

It is a super-2 number, since 2×9554545551² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9554545551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9554545591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9204246 + ... + 9205283.

It is an arithmetic number, because the mean of its divisors is an integer number (1601629110).

Almost surely, 2^9554545551 is an apocalyptic number.

9554545551 is a deficient number, since it is larger than the sum of its proper divisors (3258487329).

9554545551 is a wasteful number, since it uses less digits than its factorization.

9554545551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18409705.

The product of its digits is 2250000, while the sum is 48.

The square root of 9554545551 is about 97747.3557238251. The cubic root of 9554545551 is about 2121.9574858760.

The spelling of 9554545551 in words is "nine billion, five hundred fifty-four million, five hundred forty-five thousand, five hundred fifty-one".