55505500505552 has 40 divisors (see below), whose sum is σ = 107822063086920. Its totient is φ = 27680456867840.

The previous prime is 55505500505519. The next prime is 55505500505557. The reversal of 55505500505552 is 25550500550555.

It can be written as a sum of positive squares in 4 ways, for example, as 5444078656 + 55500056426896 = 73784^2 + 7449836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55505500505497 and 55505500505506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505500505557) 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, 202971152 + ... + 203244432.

It is an arithmetic number, because the mean of its divisors is an integer number (2695551577173).

Almost surely, 2^{55505500505552} is an apocalyptic number.

It is an amenable number.

55505500505552 is a deficient number, since it is larger than the sum of its proper divisors (52316562581368).

55505500505552 is a wasteful number, since it uses less digits than its factorization.

55505500505552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306311 (or 306305 counting only the distinct ones).

The product of its (nonzero) digits is 3906250, while the sum is 47.

The spelling of 55505500505552 in words is "fifty-five trillion, five hundred five billion, five hundred million, five hundred five thousand, five hundred fifty-two".