1662055 has 4 divisors (see below), whose sum is σ = 1994472. Its totient is φ = 1329640.

The previous prime is 1662041. The next prime is 1662083. The reversal of 1662055 is 5502661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5502661 = 467 ⋅11783.

It is not a de Polignac number, because 1662055 - 2¹¹ = 1660007 is a prime.

It is a Duffinian number.

1662055 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166201 + ... + 166210.

It is an arithmetic number, because the mean of its divisors is an integer number (498618).

2^1662055 is an apocalyptic number.

1662055 is a deficient number, since it is larger than the sum of its proper divisors (332417).

1662055 is an equidigital number, since it uses as much as digits as its factorization.

1662055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332416.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1662055 is about 1289.2071206753. The cubic root of 1662055 is about 118.4536544242.

Subtracting 1662055 from its reverse (5502661), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 1662055 in words is "one million, six hundred sixty-two thousand, fifty-five".