65556043 has 4 divisors (see below), whose sum is σ = 74921200. Its totient is φ = 56190888.

The previous prime is 65556031. The next prime is 65556047. The reversal of 65556043 is 34065556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65556043 - 2²⁵ = 32001611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65556047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4682568 + ... + 4682581.

It is an arithmetic number, because the mean of its divisors is an integer number (18730300).

Almost surely, 2^65556043 is an apocalyptic number.

65556043 is a deficient number, since it is larger than the sum of its proper divisors (9365157).

65556043 is an equidigital number, since it uses as much as digits as its factorization.

65556043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9365156.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 65556043 is about 8096.6686359268. The cubic root of 65556043 is about 403.2158330101.

The spelling of 65556043 in words is "sixty-five million, five hundred fifty-six thousand, forty-three".