55040409065 has 8 divisors (see below), whose sum is σ = 69524727360. Its totient is φ = 41714836272.

The previous prime is 55040409037. The next prime is 55040409143. The reversal of 55040409065 is 56090404055.

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 55040409065 - 2¹⁶ = 55040343529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289686269 + ... + 289686458.

It is an arithmetic number, because the mean of its divisors is an integer number (8690590920).

Almost surely, 2^55040409065 is an apocalyptic number.

It is an amenable number.

55040409065 is a deficient number, since it is larger than the sum of its proper divisors (14484318295).

55040409065 is a wasteful number, since it uses less digits than its factorization.

55040409065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579372751.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 55040409065 in words is "fifty-five billion, forty million, four hundred nine thousand, sixty-five".