55555509641 has 8 divisors (see below), whose sum is σ = 57576299520. Its totient is φ = 53541725328.

The previous prime is 55555509619. The next prime is 55555509673. The reversal of 55555509641 is 14690555555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55555509641 - 2¹⁸ = 55555247497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55555509641.

It is not an unprimeable number, because it can be changed into a prime (55555506641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1735241 + ... + 1766966.

It is an arithmetic number, because the mean of its divisors is an integer number (7197037440).

Almost surely, 2^55555509641 is an apocalyptic number.

It is an amenable number.

55555509641 is a deficient number, since it is larger than the sum of its proper divisors (2020789879).

55555509641 is a wasteful number, since it uses less digits than its factorization.

55555509641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502783.

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 55555509641 in words is "fifty-five billion, five hundred fifty-five million, five hundred nine thousand, six hundred forty-one".