54640890935263 has 4 divisors (see below), whose sum is σ = 54714829895320. Its totient is φ = 54566951975208.

The previous prime is 54640890935261. The next prime is 54640890935269. The reversal of 54640890935263 is 36253909804645.

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 54640890935263 - 2¹ = 54640890935261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54640890935195 and 54640890935204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54640890935261) 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, 36969478920 + ... + 36969480397.

It is an arithmetic number, because the mean of its divisors is an integer number (13678707473830).

Almost surely, 2^{54640890935263} is an apocalyptic number.

54640890935263 is a deficient number, since it is larger than the sum of its proper divisors (73938960057).

54640890935263 is an equidigital number, since it uses as much as digits as its factorization.

54640890935263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73938960056.

The product of its (nonzero) digits is 167961600, while the sum is 64.

The spelling of 54640890935263 in words is "fifty-four trillion, six hundred forty billion, eight hundred ninety million, nine hundred thirty-five thousand, two hundred sixty-three".