55854420518 has 32 divisors (see below), whose sum is σ = 95692750272. Its totient is φ = 24253891200.

The previous prime is 55854420497. The next prime is 55854420527. The reversal of 55854420518 is 81502445855.

It is a congruent number.

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, 729113 + ... + 802068.

It is an arithmetic number, because the mean of its divisors is an integer number (2990398446).

Almost surely, 2^55854420518 is an apocalyptic number.

55854420518 is a deficient number, since it is larger than the sum of its proper divisors (39838329754).

55854420518 is a wasteful number, since it uses less digits than its factorization.

55854420518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531280.

The product of its (nonzero) digits is 1280000, while the sum is 47.

The spelling of 55854420518 in words is "fifty-five billion, eight hundred fifty-four million, four hundred twenty thousand, five hundred eighteen".