2051355 has 16 divisors (see below), whose sum is σ = 3306240. Its totient is φ = 1086048.

The previous prime is 2051341. The next prime is 2051359. The reversal of 2051355 is 5531502.

It is not a de Polignac number, because 2051355 - 2⁵ = 2051323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051359) 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 15 ways as a sum of consecutive naturals, for example, 2026 + ... + 2864.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

2^2051355 is an apocalyptic number.

2051355 is a deficient number, since it is larger than the sum of its proper divisors (1254885).

2051355 is a wasteful number, since it uses less digits than its factorization.

2051355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 2051355 is about 1432.2552146877. The cubic root of 2051355 is about 127.0613917746.

Adding to 2051355 its reverse (5531502), we get a palindrome (7582857).

The spelling of 2051355 in words is "two million, fifty-one thousand, three hundred fifty-five".