65544087 has 16 divisors (see below), whose sum is σ = 100013312. Its totient is φ = 37402560.

The previous prime is 65544079. The next prime is 65544097. The reversal of 65544087 is 78044556.

It is not a de Polignac number, because 65544087 - 2³ = 65544079 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65544097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18012 + ... + 21342.

It is an arithmetic number, because the mean of its divisors is an integer number (6250832).

Almost surely, 2^65544087 is an apocalyptic number.

65544087 is a deficient number, since it is larger than the sum of its proper divisors (34469225).

65544087 is a wasteful number, since it uses less digits than its factorization.

65544087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 65544087 is about 8095.9302739092. The cubic root of 65544087 is about 403.1913189131.

The spelling of 65544087 in words is "sixty-five million, five hundred forty-four thousand, eighty-seven".