555040201 has 4 divisors (see below), whose sum is σ = 555098004. Its totient is φ = 554982400.

The previous prime is 555040183. The next prime is 555040229. The reversal of 555040201 is 102040555.

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 192099600 + 362940601 = 13860^2 + 19051^2 .

It is a cyclic number.

It is not a de Polignac number, because 555040201 - 2⁵ = 555040169 is a prime.

It is a super-2 number, since 2×555040201² = 616139249452240802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555040601) 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, 10660 + ... + 34981.

It is an arithmetic number, because the mean of its divisors is an integer number (138774501).

Almost surely, 2^555040201 is an apocalyptic number.

It is an amenable number.

555040201 is a deficient number, since it is larger than the sum of its proper divisors (57803).

555040201 is a wasteful number, since it uses less digits than its factorization.

555040201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57802.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 555040201 is about 23559.2911820369. The cubic root of 555040201 is about 821.8164180772.

Adding to 555040201 its reverse (102040555), we get a palindrome (657080756).

The spelling of 555040201 in words is "five hundred fifty-five million, forty thousand, two hundred one".