620054517955 has 16 divisors (see below), whose sum is σ = 797400316224. Its totient is φ = 461652808320.

The previous prime is 620054517949. The next prime is 620054517977. The reversal of 620054517955 is 559715450026.

It is not a de Polignac number, because 620054517955 - 2⁷ = 620054517827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620054517899 and 620054517908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72857616 + ... + 72866125.

It is an arithmetic number, because the mean of its divisors is an integer number (49837519764).

Almost surely, 2^620054517955 is an apocalyptic number.

620054517955 is a deficient number, since it is larger than the sum of its proper divisors (177345798269).

620054517955 is a wasteful number, since it uses less digits than its factorization.

620054517955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145723806.

The product of its (nonzero) digits is 1890000, while the sum is 49.

The spelling of 620054517955 in words is "six hundred twenty billion, fifty-four million, five hundred seventeen thousand, nine hundred fifty-five".