10987555 has 8 divisors (see below), whose sum is σ = 13302432. Its totient is φ = 8711808.

The previous prime is 10987553. The next prime is 10987579. The reversal of 10987555 is 55578901.

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 10987555 - 2¹ = 10987553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10987553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9159 + ... + 10288.

It is an arithmetic number, because the mean of its divisors is an integer number (1662804).

Almost surely, 2^10987555 is an apocalyptic number.

10987555 is a deficient number, since it is larger than the sum of its proper divisors (2314877).

10987555 is a wasteful number, since it uses less digits than its factorization.

10987555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19565.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 10987555 is about 3314.7481050602. The cubic root of 10987555 is about 222.3141064008.

The spelling of 10987555 in words is "ten million, nine hundred eighty-seven thousand, five hundred fifty-five".