2057111505 has 32 divisors (see below), whose sum is σ = 3681342720. Its totient is φ = 1089849600.

The previous prime is 2057111501. The next prime is 2057111521. The reversal of 2057111505 is 5051117502.

It is not a de Polignac number, because 2057111505 - 2² = 2057111501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2057111501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30072 + ... + 70841.

It is an arithmetic number, because the mean of its divisors is an integer number (115041960).

Almost surely, 2^2057111505 is an apocalyptic number.

It is an amenable number.

2057111505 is a deficient number, since it is larger than the sum of its proper divisors (1624231215).

2057111505 is a wasteful number, since it uses less digits than its factorization.

2057111505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101078 (or 101072 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The square root of 2057111505 is about 45355.3911349026. The cubic root of 2057111505 is about 1271.8013384566.

The spelling of 2057111505 in words is "two billion, fifty-seven million, one hundred eleven thousand, five hundred five".