2251523033 has 4 divisors (see below), whose sum is σ = 2258011920. Its totient is φ = 2245034148.

The previous prime is 2251523023. The next prime is 2251523059. The reversal of 2251523033 is 3303251522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2251523033 - 2¹² = 2251518937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2251522993 and 2251523011.

It is not an unprimeable number, because it can be changed into a prime (2251523023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3243923 + ... + 3244616.

It is an arithmetic number, because the mean of its divisors is an integer number (564502980).

Almost surely, 2^2251523033 is an apocalyptic number.

It is an amenable number.

2251523033 is a deficient number, since it is larger than the sum of its proper divisors (6488887).

2251523033 is an equidigital number, since it uses as much as digits as its factorization.

2251523033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488886.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 2251523033 is about 47450.2163641010. The cubic root of 2251523033 is about 1310.6662952786. Note that the first 3 decimals are identical.

Adding to 2251523033 its reverse (3303251522), we get a palindrome (5554774555).

The spelling of 2251523033 in words is "two billion, two hundred fifty-one million, five hundred twenty-three thousand, thirty-three".