2115550 has 24 divisors (see below), whose sum is σ = 4073400. Its totient is φ = 816480.

The previous prime is 2115539. The next prime is 2115571. The reversal of 2115550 is 555112.

2115550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 721 + ... + 2179.

It is an arithmetic number, because the mean of its divisors is an integer number (169725).

2^2115550 is an apocalyptic number.

2115550 is a deficient number, since it is larger than the sum of its proper divisors (1957850).

2115550 is a wasteful number, since it uses less digits than its factorization.

2115550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 2115550 is about 1454.4930388283. The cubic root of 2115550 is about 128.3732189886.

The spelling of 2115550 in words is "two million, one hundred fifteen thousand, five hundred fifty".