555466421 has 4 divisors (see below), whose sum is σ = 556571232. Its totient is φ = 554361612.

The previous prime is 555466409. The next prime is 555466423. The reversal of 555466421 is 124664555.

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 555466421 - 2⁶ = 555466357 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 (555466423) 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, 551651 + ... + 552656.

It is an arithmetic number, because the mean of its divisors is an integer number (139142808).

Almost surely, 2^555466421 is an apocalyptic number.

It is an amenable number.

555466421 is a deficient number, since it is larger than the sum of its proper divisors (1104811).

555466421 is a wasteful number, since it uses less digits than its factorization.

555466421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104810.

The product of its digits is 144000, while the sum is 38.

The square root of 555466421 is about 23568.3351342431. The cubic root of 555466421 is about 822.0267241486.

The spelling of 555466421 in words is "five hundred fifty-five million, four hundred sixty-six thousand, four hundred twenty-one".