2043555 has 8 divisors (see below), whose sum is σ = 3269712. Its totient is φ = 1089888.

The previous prime is 2043541. The next prime is 2043571. The reversal of 2043555 is 5553402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2043555 - 2⁴ = 2043539 is a prime.

It is a super-2 number, since 2×2043555² = 8352234076050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68104 + ... + 68133.

It is an arithmetic number, because the mean of its divisors is an integer number (408714).

2^2043555 is an apocalyptic number.

2043555 is a deficient number, since it is larger than the sum of its proper divisors (1226157).

2043555 is a wasteful number, since it uses less digits than its factorization.

2043555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136245.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 2043555 is about 1429.5296429246. The cubic root of 2043555 is about 126.9001426387.

Adding to 2043555 its reverse (5553402), we get a palindrome (7596957).

The spelling of 2043555 in words is "two million, forty-three thousand, five hundred fifty-five".