55100005500501 has 32 divisors (see below), whose sum is σ = 87944389518720. Its totient is φ = 33893983999872.

The previous prime is 55100005500473. The next prime is 55100005500521. The reversal of 55100005500501 is 10500550000155.

55100005500501 is a `hidden beast` number, since 5 + 5 + 100 + 0 + 0 + 5 + 50 + 0 + 501 = 666.

It is not a de Polignac number, because 55100005500501 - 2⁷ = 55100005500373 is a prime.

It is a super-2 number, since 2×55100005500501² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55100005500521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30870771 + ... + 32606816.

It is an arithmetic number, because the mean of its divisors is an integer number (2748262172460).

Almost surely, 2^{55100005500501} is an apocalyptic number.

It is an amenable number.

55100005500501 is a deficient number, since it is larger than the sum of its proper divisors (32844384018219).

55100005500501 is a wasteful number, since it uses less digits than its factorization.

55100005500501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63480082 (or 63480076 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

Adding to 55100005500501 its reverse (10500550000155), we get a palindrome (65600555500656).

The spelling of 55100005500501 in words is "fifty-five trillion, one hundred billion, five million, five hundred thousand, five hundred one".