55005510601001 has 4 divisors (see below), whose sum is σ = 55005525875412. Its totient is φ = 55005495326592.

The previous prime is 55005510600919. The next prime is 55005510601007. The reversal of 55005510601001 is 10010601550055.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 48162975402025 + 6842535198976 = 6939955^2 + 2615824^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005510601001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55005510601007) 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, 1084901 + ... + 10544573.

It is an arithmetic number, because the mean of its divisors is an integer number (13751381468853).

Almost surely, 2^{55005510601001} is an apocalyptic number.

It is an amenable number.

55005510601001 is a deficient number, since it is larger than the sum of its proper divisors (15274411).

55005510601001 is an equidigital number, since it uses as much as digits as its factorization.

55005510601001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15274410.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 55005510601001 in words is "fifty-five trillion, five billion, five hundred ten million, six hundred one thousand, one".