2055431 has 4 divisors (see below), whose sum is σ = 2349072. Its totient is φ = 1761792.

The previous prime is 2055409. The next prime is 2055437. The reversal of 2055431 is 1345502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2055431 - 2⁶ = 2055367 is a prime.

It is a super-3 number, since 3×2055431³ = 26051333674864883973, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 146810 + ... + 146823.

It is an arithmetic number, because the mean of its divisors is an integer number (587268).

2^2055431 is an apocalyptic number.

2055431 is a deficient number, since it is larger than the sum of its proper divisors (293641).

2055431 is an equidigital number, since it uses as much as digits as its factorization.

2055431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293640.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2055431 is about 1433.6774393147. The cubic root of 2055431 is about 127.1454922173.

The spelling of 2055431 in words is "two million, fifty-five thousand, four hundred thirty-one".