87553565 has 8 divisors (see below), whose sum is σ = 114615648. Its totient is φ = 63675280.

The previous prime is 87553561. The next prime is 87553589. The reversal of 87553565 is 56535578.

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

It is not a de Polignac number, because 87553565 - 2² = 87553561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87553561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795887 + ... + 795996.

It is an arithmetic number, because the mean of its divisors is an integer number (14326956).

Almost surely, 2^87553565 is an apocalyptic number.

It is an amenable number.

87553565 is a deficient number, since it is larger than the sum of its proper divisors (27062083).

87553565 is a wasteful number, since it uses less digits than its factorization.

87553565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591899.

The product of its digits is 630000, while the sum is 44.

The square root of 87553565 is about 9357.0061985659. The cubic root of 87553565 is about 444.0425739686.

The spelling of 87553565 in words is "eighty-seven million, five hundred fifty-three thousand, five hundred sixty-five".