2115557582 has 16 divisors (see below), whose sum is σ = 3211240032. Its totient is φ = 1045189920.

The previous prime is 2115557581. The next prime is 2115557623. The reversal of 2115557582 is 2857555112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115557581) 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 7 ways as a sum of consecutive naturals, for example, 83828 + ... + 106104.

It is an arithmetic number, because the mean of its divisors is an integer number (200702502).

Almost surely, 2^2115557582 is an apocalyptic number.

2115557582 is a deficient number, since it is larger than the sum of its proper divisors (1095682450).

2115557582 is a wasteful number, since it uses less digits than its factorization.

2115557582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22843.

The product of its digits is 140000, while the sum is 41.

The square root of 2115557582 is about 45995.1908573059. The cubic root of 2115557582 is about 1283.7337234895.

The spelling of 2115557582 in words is "two billion, one hundred fifteen million, five hundred fifty-seven thousand, five hundred eighty-two".