89153561 has 4 divisors (see below), whose sum is σ = 101889792. Its totient is φ = 76417332.

The previous prime is 89153539. The next prime is 89153587. The reversal of 89153561 is 16535198.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 89153561 - 2¹⁴ = 89137177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89153521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6368105 + ... + 6368118.

It is an arithmetic number, because the mean of its divisors is an integer number (25472448).

Almost surely, 2^89153561 is an apocalyptic number.

It is an amenable number.

89153561 is a deficient number, since it is larger than the sum of its proper divisors (12736231).

89153561 is a wasteful number, since it uses less digits than its factorization.

89153561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736230.

The product of its digits is 32400, while the sum is 38.

The square root of 89153561 is about 9442.1163411600. The cubic root of 89153561 is about 446.7311450568.

The spelling of 89153561 in words is "eighty-nine million, one hundred fifty-three thousand, five hundred sixty-one".