1005580855 has 8 divisors (see below), whose sum is σ = 1277679312. Its totient is φ = 757143168.

The previous prime is 1005580853. The next prime is 1005580859. The reversal of 1005580855 is 5580855001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005580855 - 2¹ = 1005580853 is a prime.

It is a super-2 number, since 2×1005580855² = 2022385711885062050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005580853) 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, 5915097 + ... + 5915266.

It is an arithmetic number, because the mean of its divisors is an integer number (159709914).

Almost surely, 2^1005580855 is an apocalyptic number.

1005580855 is a deficient number, since it is larger than the sum of its proper divisors (272098457).

1005580855 is a wasteful number, since it uses less digits than its factorization.

1005580855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11830385.

The product of its (nonzero) digits is 40000, while the sum is 37.

The square root of 1005580855 is about 31710.8948943419. The cubic root of 1005580855 is about 1001.8568350297.

The spelling of 1005580855 in words is "one billion, five million, five hundred eighty thousand, eight hundred fifty-five".