555666051 has 4 divisors (see below), whose sum is σ = 740888072. Its totient is φ = 370444032.

The previous prime is 555665959. The next prime is 555666053. The reversal of 555666051 is 150666555.

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

It is not a de Polignac number, because 555666051 - 2²⁵ = 522111619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555666053) 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, 92611006 + ... + 92611011.

It is an arithmetic number, because the mean of its divisors is an integer number (185222018).

Almost surely, 2^555666051 is an apocalyptic number.

555666051 is a deficient number, since it is larger than the sum of its proper divisors (185222021).

555666051 is a wasteful number, since it uses less digits than its factorization.

555666051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185222020.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 555666051 is about 23572.5698853562. The cubic root of 555666051 is about 822.1251888705.

The spelling of 555666051 in words is "five hundred fifty-five million, six hundred sixty-six thousand, fifty-one".