54621516497773 has 8 divisors (see below), whose sum is σ = 54731100513600. Its totient is φ = 54511936421568.

The previous prime is 54621516497719. The next prime is 54621516497813. The reversal of 54621516497773 is 37779461512645.

It is a happy number.

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 54621516497773 - 2²⁹ = 54620979626861 is a prime.

It is a super-4 number, since 4×54621516497773⁴ (a number of 56 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54621516497699 and 54621516497708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54621514497773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27603573 + ... + 29516101.

It is an arithmetic number, because the mean of its divisors is an integer number (6841387564200).

Almost surely, 2^{54621516497773} is an apocalyptic number.

It is an amenable number.

54621516497773 is a deficient number, since it is larger than the sum of its proper divisors (109584015827).

54621516497773 is a wasteful number, since it uses less digits than its factorization.

54621516497773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969811.

The product of its digits is 266716800, while the sum is 67.

The spelling of 54621516497773 in words is "fifty-four trillion, six hundred twenty-one billion, five hundred sixteen million, four hundred ninety-seven thousand, seven hundred seventy-three".