8908961553 has 16 divisors (see below), whose sum is σ = 13209499200. Its totient is φ = 5934340800.

The previous prime is 8908961539. The next prime is 8908961563. The reversal of 8908961553 is 3551698098.

It is a happy number.

8908961553 is a `hidden beast` number, since 8 + 9 + 0 + 89 + 6 + 1 + 553 = 666.

It is not a de Polignac number, because 8908961553 - 2³⁰ = 7835219729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8908961553.

It is not an unprimeable number, because it can be changed into a prime (8908961563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104943 + ... + 169796.

It is an arithmetic number, because the mean of its divisors is an integer number (825593700).

Almost surely, 2^8908961553 is an apocalyptic number.

It is an amenable number.

8908961553 is a deficient number, since it is larger than the sum of its proper divisors (4300537647).

8908961553 is a wasteful number, since it uses less digits than its factorization.

8908961553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275949 (or 275943 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The square root of 8908961553 is about 94387.2955063339. The cubic root of 8908961553 is about 2073.0464259385.

The spelling of 8908961553 in words is "eight billion, nine hundred eight million, nine hundred sixty-one thousand, five hundred fifty-three".