2251355 has 8 divisors (see below), whose sum is σ = 2819232. Its totient is φ = 1722688.

The previous prime is 2251349. The next prime is 2251369. The reversal of 2251355 is 5531522.

2251355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2251355 - 2⁸ = 2251099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁸ + 5⁴ + 1 + 3¹³ + 5⁵ + 5⁸ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9674 + ... + 9903.

It is an arithmetic number, because the mean of its divisors is an integer number (352404).

2^2251355 is an apocalyptic number.

2251355 is a deficient number, since it is larger than the sum of its proper divisors (567877).

2251355 is a wasteful number, since it uses less digits than its factorization.

2251355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19605.

The product of its digits is 1500, while the sum is 23.

The square root of 2251355 is about 1500.4515986862. The cubic root of 2251355 is about 131.0633689103.

Adding to 2251355 its reverse (5531522), we get a palindrome (7782877).

The spelling of 2251355 in words is "two million, two hundred fifty-one thousand, three hundred fifty-five".