55510817606 has 4 divisors (see below), whose sum is σ = 83266226412. Its totient is φ = 27755408802.

The previous prime is 55510817603. The next prime is 55510817611. The reversal of 55510817606 is 60671801555.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60671801555 = 5 ⋅12134360311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55510817603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877704400 + ... + 13877704403.

It is an arithmetic number, because the mean of its divisors is an integer number (20816556603).

Almost surely, 2^55510817606 is an apocalyptic number.

55510817606 is a deficient number, since it is larger than the sum of its proper divisors (27755408806).

55510817606 is a wasteful number, since it uses less digits than its factorization.

55510817606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27755408805.

The product of its (nonzero) digits is 252000, while the sum is 44.

The spelling of 55510817606 in words is "fifty-five billion, five hundred ten million, eight hundred seventeen thousand, six hundred six".