55550500505513 has 4 divisors (see below), whose sum is σ = 59823615929028. Its totient is φ = 51277385082000.

The previous prime is 55550500505509. The next prime is 55550500505519. The reversal of 55550500505513 is 31550500505555.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3778618913689 + 51771881591824 = 1943867^2 + 7195268^2 .

It is a cyclic number.

It is not a de Polignac number, because 55550500505513 - 2² = 55550500505509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55550500505519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136557711738 + ... + 2136557711763.

It is an arithmetic number, because the mean of its divisors is an integer number (14955903982257).

Almost surely, 2^{55550500505513} is an apocalyptic number.

It is an amenable number.

55550500505513 is a deficient number, since it is larger than the sum of its proper divisors (4273115423515).

55550500505513 is a wasteful number, since it uses less digits than its factorization.

55550500505513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273115423514.

The product of its (nonzero) digits is 1171875, while the sum is 44.

The spelling of 55550500505513 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred five thousand, five hundred thirteen".