55554723518 has 32 divisors (see below), whose sum is σ = 99891753984. Its totient is φ = 22672779552.

The previous prime is 55554723493. The next prime is 55554723551. The reversal of 55554723518 is 81532745555.

It is a super-2 number, since 2×55554723518² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1116596 + ... + 1165287.

It is an arithmetic number, because the mean of its divisors is an integer number (3121617312).

Almost surely, 2^55554723518 is an apocalyptic number.

55554723518 is a deficient number, since it is larger than the sum of its proper divisors (44337030466).

55554723518 is a wasteful number, since it uses less digits than its factorization.

55554723518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281976.

The product of its digits is 4200000, while the sum is 50.

The spelling of 55554723518 in words is "fifty-five billion, five hundred fifty-four million, seven hundred twenty-three thousand, five hundred eighteen".