555623945 has 8 divisors (see below), whose sum is σ = 678049920. Its totient is φ = 436965040.

The previous prime is 555623933. The next prime is 555623993. The reversal of 555623945 is 549326555.

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

It is not a de Polignac number, because 555623945 - 2⁸ = 555623689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555623896 and 555623905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941441 + ... + 942030.

It is an arithmetic number, because the mean of its divisors is an integer number (84756240).

Almost surely, 2^555623945 is an apocalyptic number.

It is an amenable number.

555623945 is a deficient number, since it is larger than the sum of its proper divisors (122425975).

555623945 is a wasteful number, since it uses less digits than its factorization.

555623945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883535.

The product of its digits is 810000, while the sum is 44.

The square root of 555623945 is about 23571.6767541047. The cubic root of 555623945 is about 822.1044226341.

The spelling of 555623945 in words is "five hundred fifty-five million, six hundred twenty-three thousand, nine hundred forty-five".