89510261 has 4 divisors (see below), whose sum is σ = 89569452. Its totient is φ = 89451072.

The previous prime is 89510249. The next prime is 89510263. The reversal of 89510261 is 16201598.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28826161 + 60684100 = 5369^2 + 7790^2 .

It is a cyclic number.

It is not a de Polignac number, because 89510261 - 2¹⁰ = 89509237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89510263) 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, 27266 + ... + 30371.

It is an arithmetic number, because the mean of its divisors is an integer number (22392363).

Almost surely, 2^89510261 is an apocalyptic number.

It is an amenable number.

89510261 is a deficient number, since it is larger than the sum of its proper divisors (59191).

89510261 is a wasteful number, since it uses less digits than its factorization.

89510261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59190.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 89510261 is about 9460.9862593706. The cubic root of 89510261 is about 447.3261370098.

The spelling of 89510261 in words is "eighty-nine million, five hundred ten thousand, two hundred sixty-one".