555401213 has 4 divisors (see below), whose sum is σ = 555499680. Its totient is φ = 555302748.

The previous prime is 555401183. The next prime is 555401219. The reversal of 555401213 is 312104555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 555401213 - 2⁶ = 555401149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555401219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40223 + ... + 52236.

It is an arithmetic number, because the mean of its divisors is an integer number (138874920).

Almost surely, 2^555401213 is an apocalyptic number.

It is an amenable number.

555401213 is a deficient number, since it is larger than the sum of its proper divisors (98467).

555401213 is an equidigital number, since it uses as much as digits as its factorization.

555401213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98466.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 555401213 is about 23566.9517120904. The cubic root of 555401213 is about 821.9945560977.

Adding to 555401213 its reverse (312104555), we get a palindrome (867505768).

The spelling of 555401213 in words is "five hundred fifty-five million, four hundred one thousand, two hundred thirteen".