555667641 has 8 divisors (see below), whose sum is σ = 823211360. Its totient is φ = 370445076.

The previous prime is 555667633. The next prime is 555667643. The reversal of 555667641 is 146766555.

It is not a de Polignac number, because 555667641 - 2³ = 555667633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555667643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10290115 + ... + 10290168.

It is an arithmetic number, because the mean of its divisors is an integer number (102901420).

Almost surely, 2^555667641 is an apocalyptic number.

It is an amenable number.

555667641 is a deficient number, since it is larger than the sum of its proper divisors (267543719).

555667641 is a wasteful number, since it uses less digits than its factorization.

555667641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20580292 (or 20580286 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 555667641 is about 23572.6036109718. The cubic root of 555667641 is about 822.1259730212.

The spelling of 555667641 in words is "five hundred fifty-five million, six hundred sixty-seven thousand, six hundred forty-one".