555580555420 has 48 divisors (see below), whose sum is σ = 1290219987168. Its totient is φ = 199261762560.

The previous prime is 555580555367. The next prime is 555580555421. The reversal of 555580555420 is 24555085555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555580555421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17280969 + ... + 17313088.

It is an arithmetic number, because the mean of its divisors is an integer number (26879583066).

Almost surely, 2^555580555420 is an apocalyptic number.

It is an amenable number.

555580555420 is an abundant number, since it is smaller than the sum of its proper divisors (734639431748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555580555420 is a wasteful number, since it uses less digits than its factorization.

555580555420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34594150 (or 34594148 counting only the distinct ones).

The product of its (nonzero) digits is 5000000, while the sum is 49.

The spelling of 555580555420 in words is "five hundred fifty-five billion, five hundred eighty million, five hundred fifty-five thousand, four hundred twenty".