5454545656565 has 8 divisors (see below), whose sum is σ = 6545800910520. Its totient is φ = 4363405776832.

The previous prime is 5454545656537. The next prime is 5454545656621. The reversal of 5454545656565 is 5656565454545.

It is a happy number.

5454545656565 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 398986775716 + 5055558880849 = 631654^2 + 2248457^2 .

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 5454545656565 - 2⁸ = 5454545656309 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28739510 + ... + 28928679.

It is an arithmetic number, because the mean of its divisors is an integer number (818225113815).

Almost surely, 2^{5454545656565} is an apocalyptic number.

It is an amenable number.

5454545656565 is a deficient number, since it is larger than the sum of its proper divisors (1091255253955).

5454545656565 is a wasteful number, since it uses less digits than its factorization.

5454545656565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57687111.

The product of its digits is 1080000000, while the sum is 65.

The spelling of 5454545656565 in words is "five trillion, four hundred fifty-four billion, five hundred forty-five million, six hundred fifty-six thousand, five hundred sixty-five".