55556010518 has 4 divisors (see below), whose sum is σ = 83334015780. Its totient is φ = 27778005258.

The previous prime is 55556010511. The next prime is 55556010547. The reversal of 55556010518 is 81501065555.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×55556010518² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55556010511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13889002628 + ... + 13889002631.

It is an arithmetic number, because the mean of its divisors is an integer number (20833503945).

Almost surely, 2^55556010518 is an apocalyptic number.

55556010518 is a deficient number, since it is larger than the sum of its proper divisors (27778005262).

55556010518 is a wasteful number, since it uses less digits than its factorization.

55556010518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27778005261.

The product of its (nonzero) digits is 150000, while the sum is 41.

The spelling of 55556010518 in words is "fifty-five billion, five hundred fifty-six million, ten thousand, five hundred eighteen".