555556145 has 8 divisors (see below), whose sum is σ = 695653056. Its totient is φ = 425121136.

The previous prime is 555556139. The next prime is 555556193. The reversal of 555556145 is 541655555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 555556145 - 2⁶ = 555556081 is a prime.

It is a super-2 number, since 2×555556145² = 617285260494522050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2415347 + ... + 2415576.

It is an arithmetic number, because the mean of its divisors is an integer number (86956632).

Almost surely, 2^555556145 is an apocalyptic number.

It is an amenable number.

555556145 is a deficient number, since it is larger than the sum of its proper divisors (140096911).

555556145 is a wasteful number, since it uses less digits than its factorization.

555556145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830951.

The product of its digits is 375000, while the sum is 41.

The square root of 555556145 is about 23570.2385435532. The cubic root of 555556145 is about 822.0709821824.

The spelling of 555556145 in words is "five hundred fifty-five million, five hundred fifty-six thousand, one hundred forty-five".