2251511223 has 8 divisors (see below), whose sum is σ = 3232939248. Its totient is φ = 1385545344.

The previous prime is 2251511219. The next prime is 2251511233. The reversal of 2251511223 is 3221151522.

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

It is not a de Polignac number, because 2251511223 - 2² = 2251511219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2251511193 and 2251511202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251511233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28865490 + ... + 28865567.

It is an arithmetic number, because the mean of its divisors is an integer number (404117406).

Almost surely, 2^2251511223 is an apocalyptic number.

2251511223 is a deficient number, since it is larger than the sum of its proper divisors (981428025).

2251511223 is a wasteful number, since it uses less digits than its factorization.

2251511223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57731073.

The product of its digits is 1200, while the sum is 24.

The square root of 2251511223 is about 47450.0919177192. The cubic root of 2251511223 is about 1310.6640036453.

Adding to 2251511223 its reverse (3221151522), we get a palindrome (5472662745).

The spelling of 2251511223 in words is "two billion, two hundred fifty-one million, five hundred eleven thousand, two hundred twenty-three".