1050505155 has 48 divisors (see below), whose sum is σ = 2190539520. Its totient is φ = 454953024.

The previous prime is 1050505129. The next prime is 1050505219. The reversal of 1050505155 is 5515050501.

1050505155 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 505 + 155 = 666.

It is not a de Polignac number, because 1050505155 - 2⁸ = 1050504899 is a prime.

It is a super-2 number, since 2×1050505155² = 2207122161363148050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 81777 + ... + 93746.

It is an arithmetic number, because the mean of its divisors is an integer number (45636240).

Almost surely, 2^1050505155 is an apocalyptic number.

1050505155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1050505155 is an abundant number, since it is smaller than the sum of its proper divisors (1140034365).

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

1050505155 is a wasteful number, since it uses less digits than its factorization.

1050505155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175560 (or 175557 counting only the distinct ones).

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

The square root of 1050505155 is about 32411.4972656309. The cubic root of 1050505155 is about 1016.5593267785.

Adding to 1050505155 its reverse (5515050501), we get a palindrome (6565555656).

The spelling of 1050505155 in words is "one billion, fifty million, five hundred five thousand, one hundred fifty-five".