555505540 has 24 divisors (see below), whose sum is σ = 1167246360. Its totient is φ = 222071808.

The previous prime is 555505537. The next prime is 555505571. The reversal of 555505540 is 45505555.

It can be written as a sum of positive squares in 4 ways, for example, as 112487236 + 443018304 = 10606^2 + 21048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 555505496 and 555505505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31476 + ... + 45844.

It is an arithmetic number, because the mean of its divisors is an integer number (48635265).

Almost surely, 2^555505540 is an apocalyptic number.

It is an amenable number.

555505540 is an abundant number, since it is smaller than the sum of its proper divisors (611740820).

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

555505540 is a wasteful number, since it uses less digits than its factorization.

555505540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16311 (or 16309 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 34.

The square root of 555505540 is about 23569.1650255159. The cubic root of 555505540 is about 822.0460209097.

The spelling of 555505540 in words is "five hundred fifty-five million, five hundred five thousand, five hundred forty".