555040101 has 24 divisors (see below), whose sum is σ = 939142944. Its totient is φ = 288331680.

The previous prime is 555040093. The next prime is 555040133. The reversal of 555040101 is 101040555.

It is not a de Polignac number, because 555040101 - 2³ = 555040093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555040181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170010 + ... + 173243.

It is an arithmetic number, because the mean of its divisors is an integer number (39130956).

Almost surely, 2^555040101 is an apocalyptic number.

It is an amenable number.

555040101 is a deficient number, since it is larger than the sum of its proper divisors (384102843).

555040101 is a wasteful number, since it uses less digits than its factorization.

555040101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343281 (or 343274 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 555040101 is about 23559.2890597318. The cubic root of 555040101 is about 821.8163687224.

Adding to 555040101 its reverse (101040555), we get a palindrome (656080656).

The spelling of 555040101 in words is "five hundred fifty-five million, forty thousand, one hundred one".