2113550 has 24 divisors (see below), whose sum is σ = 4030992. Its totient is φ = 824000.

The previous prime is 2113523. The next prime is 2113567. The reversal of 2113550 is 553112.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535 + ... + 2565.

It is an arithmetic number, because the mean of its divisors is an integer number (167958).

2^2113550 is an apocalyptic number.

2113550 is a deficient number, since it is larger than the sum of its proper divisors (1917442).

2113550 is a wasteful number, since it uses less digits than its factorization.

2113550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 2113550 is about 1453.8053514828. The cubic root of 2113550 is about 128.3327523821.

Adding to 2113550 its reverse (553112), we get a palindrome (2666662).

The spelling of 2113550 in words is "two million, one hundred thirteen thousand, five hundred fifty".