554645555 has 4 divisors (see below), whose sum is σ = 665574672. Its totient is φ = 443716440.

The previous prime is 554645551. The next prime is 554645563. The reversal of 554645555 is 555546455.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 554645555 - 2² = 554645551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554645551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55464551 + ... + 55464560.

It is an arithmetic number, because the mean of its divisors is an integer number (166393668).

Almost surely, 2^554645555 is an apocalyptic number.

554645555 is a deficient number, since it is larger than the sum of its proper divisors (110929117).

554645555 is a wasteful number, since it uses less digits than its factorization.

554645555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110929116.

The product of its digits is 1500000, while the sum is 44.

The square root of 554645555 is about 23550.9141011554. The cubic root of 554645555 is about 821.6215952760.

The spelling of 554645555 in words is "five hundred fifty-four million, six hundred forty-five thousand, five hundred fifty-five".