1155050505 has 24 divisors (see below), whose sum is σ = 2288100672. Its totient is φ = 528022944.

The previous prime is 1155050473. The next prime is 1155050539. The reversal of 1155050505 is 5050505511.

1155050505 is a `hidden beast` number, since 1 + 155 + 0 + 5 + 0 + 505 = 666.

It is not a de Polignac number, because 1155050505 - 2⁵ = 1155050473 is a prime.

1155050505 is a modest number, since divided by 50505 gives 1155 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1833099 + ... + 1833728.

It is an arithmetic number, because the mean of its divisors is an integer number (95337528).

Almost surely, 2^1155050505 is an apocalyptic number.

1155050505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155050505 is a deficient number, since it is larger than the sum of its proper divisors (1133050167).

1155050505 is a wasteful number, since it uses less digits than its factorization.

1155050505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666845 (or 3666842 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 1155050505 is about 33986.0339698530. The cubic root of 1155050505 is about 1049.2210413080.

The spelling of 1155050505 in words is "one billion, one hundred fifty-five million, fifty thousand, five hundred five".