555504453401 has 4 divisors (see below), whose sum is σ = 588181185972. Its totient is φ = 522827720832.

The previous prime is 555504453379. The next prime is 555504453409. The reversal of 555504453401 is 104354405555.

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 325469109001 + 230035344400 = 570499^2 + 479620^2 .

It is a cyclic number.

It is not a de Polignac number, because 555504453401 - 2³⁸ = 280626546457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (555504453409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16338366260 + ... + 16338366293.

It is an arithmetic number, because the mean of its divisors is an integer number (147045296493).

Almost surely, 2^555504453401 is an apocalyptic number.

It is an amenable number.

555504453401 is a deficient number, since it is larger than the sum of its proper divisors (32676732571).

555504453401 is a wasteful number, since it uses less digits than its factorization.

555504453401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32676732570.

The product of its (nonzero) digits is 600000, while the sum is 41.

Adding to 555504453401 its reverse (104354405555), we get a palindrome (659858858956).

The spelling of 555504453401 in words is "five hundred fifty-five billion, five hundred four million, four hundred fifty-three thousand, four hundred one".