555288216 has 32 divisors (see below), whose sum is σ = 1586538240. Its totient is φ = 158653728.

The previous prime is 555288211. The next prime is 555288229. The reversal of 555288216 is 612882555.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555288211) 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, 1652476 + ... + 1652811.

It is an arithmetic number, because the mean of its divisors is an integer number (49579320).

Almost surely, 2^555288216 is an apocalyptic number.

555288216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

555288216 is an abundant number, since it is smaller than the sum of its proper divisors (1031250024).

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

555288216 is a wasteful number, since it uses less digits than its factorization.

555288216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305303 (or 3305299 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 555288216 is about 23564.5542287564. The cubic root of 555288216 is about 821.9388070785.

The spelling of 555288216 in words is "five hundred fifty-five million, two hundred eighty-eight thousand, two hundred sixteen".