54400010065 has 4 divisors (see below), whose sum is σ = 65280012084. Its totient is φ = 43520008048.

The previous prime is 54400010053. The next prime is 54400010099. The reversal of 54400010065 is 56001000445.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18806282496 + 35593727569 = 137136^2 + 188663^2 .

It is a cyclic number.

It is not a de Polignac number, because 54400010065 - 2¹⁷ = 54399878993 is a prime.

It is a super-2 number, since 2×54400010065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5440001002 + ... + 5440001011.

It is an arithmetic number, because the mean of its divisors is an integer number (16320003021).

Almost surely, 2^54400010065 is an apocalyptic number.

It is an amenable number.

54400010065 is a deficient number, since it is larger than the sum of its proper divisors (10880002019).

54400010065 is a wasteful number, since it uses less digits than its factorization.

54400010065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880002018.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 54400010065 in words is "fifty-four billion, four hundred million, ten thousand, sixty-five".