54620617455 has 24 divisors (see below), whose sum is σ = 94709732208. Its totient is φ = 29120535936.

The previous prime is 54620617439. The next prime is 54620617481. The reversal of 54620617455 is 55471602645.

54620617455 is a `hidden beast` number, since 5 + 4 + 6 + 20 + 617 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 54620617455 - 2⁴ = 54620617439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 54620617455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90382 + ... + 342651.

It is an arithmetic number, because the mean of its divisors is an integer number (3946238842).

Almost surely, 2^54620617455 is an apocalyptic number.

54620617455 is a deficient number, since it is larger than the sum of its proper divisors (40089114753).

54620617455 is a wasteful number, since it uses less digits than its factorization.

54620617455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435847 (or 435844 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 54620617455 in words is "fifty-four billion, six hundred twenty million, six hundred seventeen thousand, four hundred fifty-five".