555561447225 has 24 divisors (see below), whose sum is σ = 918560306592. Its totient is φ = 296289100800.

The previous prime is 555561447179. The next prime is 555561447247. The reversal of 555561447225 is 522744165555.

It is not a de Polignac number, because 555561447225 - 2¹⁹ = 555560922937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2349670 + ... + 2575280.

It is an arithmetic number, because the mean of its divisors is an integer number (38273346108).

Almost surely, 2^555561447225 is an apocalyptic number.

It is an amenable number.

555561447225 is a deficient number, since it is larger than the sum of its proper divisors (362998859367).

555561447225 is a wasteful number, since it uses less digits than its factorization.

555561447225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258457 (or 258452 counting only the distinct ones).

The product of its digits is 8400000, while the sum is 51.

The spelling of 555561447225 in words is "five hundred fifty-five billion, five hundred sixty-one million, four hundred forty-seven thousand, two hundred twenty-five".