55555550611 has 8 divisors (see below), whose sum is σ = 60608047104. Its totient is φ = 50503386120.

The previous prime is 55555550599. The next prime is 55555550623. The reversal of 55555550611 is 11605555555.

It is an interprime number because it is at equal distance from previous prime (55555550599) and next prime (55555550623).

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

It is not a de Polignac number, because 55555550611 - 2³¹ = 53408066963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55555550711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 378466 + ... + 504328.

It is an arithmetic number, because the mean of its divisors is an integer number (7576005888).

Almost surely, 2^55555550611 is an apocalyptic number.

55555550611 is a deficient number, since it is larger than the sum of its proper divisors (5052496493).

55555550611 is a wasteful number, since it uses less digits than its factorization.

55555550611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166001.

The product of its (nonzero) digits is 468750, while the sum is 43.

The spelling of 55555550611 in words is "fifty-five billion, five hundred fifty-five million, five hundred fifty thousand, six hundred eleven".