65544427 has 16 divisors (see below), whose sum is σ = 74203360. Its totient is φ = 57480192.

The previous prime is 65544403. The next prime is 65544463. The reversal of 65544427 is 72444556.

65544427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65544427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65544497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19099 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (4637710).

Almost surely, 2^65544427 is an apocalyptic number.

65544427 is a deficient number, since it is larger than the sum of its proper divisors (8658933).

65544427 is a wasteful number, since it uses less digits than its factorization.

65544427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262.

The product of its digits is 134400, while the sum is 37.

The square root of 65544427 is about 8095.9512720866. The cubic root of 65544427 is about 403.1920160764.

The spelling of 65544427 in words is "sixty-five million, five hundred forty-four thousand, four hundred twenty-seven".