65775087 has 24 divisors (see below), whose sum is σ = 112087040. Its totient is φ = 36372240.

The previous prime is 65775053. The next prime is 65775089. The reversal of 65775087 is 78057756.

It is not a de Polignac number, because 65775087 - 2⁸ = 65774831 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65775089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14887 + ... + 18792.

Almost surely, 2^65775087 is an apocalyptic number.

65775087 is a deficient number, since it is larger than the sum of its proper divisors (46311953).

65775087 is a wasteful number, since it uses less digits than its factorization.

65775087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33723 (or 33720 counting only the distinct ones).

The product of its (nonzero) digits is 411600, while the sum is 45.

The square root of 65775087 is about 8110.1841532730. The cubic root of 65775087 is about 403.6644253710.

It can be divided in two parts, 6577 and 5087, that added together give a square (11664 = 108²).

The spelling of 65775087 in words is "sixty-five million, seven hundred seventy-five thousand, eighty-seven".