916255556 has 6 divisors (see below), whose sum is σ = 1603447230. Its totient is φ = 458127776.

The previous prime is 916255541. The next prime is 916255583. The reversal of 916255556 is 655552619.

It can be written as a sum of positive squares in only one way, i.e., 678602500 + 237653056 = 26050^2 + 15416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114531941 + ... + 114531948.

It is an arithmetic number, because the mean of its divisors is an integer number (267241205).

Almost surely, 2^916255556 is an apocalyptic number.

It is an amenable number.

916255556 is a deficient number, since it is larger than the sum of its proper divisors (687191674).

916255556 is a wasteful number, since it uses less digits than its factorization.

916255556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229063893 (or 229063891 counting only the distinct ones).

The product of its digits is 405000, while the sum is 44.

The square root of 916255556 is about 30269.7135103720. The cubic root of 916255556 is about 971.2675376791.

The spelling of 916255556 in words is "nine hundred sixteen million, two hundred fifty-five thousand, five hundred fifty-six".