2251324405 has 16 divisors (see below), whose sum is σ = 2974739904. Its totient is φ = 1622020480.

The previous prime is 2251324381. The next prime is 2251324423. The reversal of 2251324405 is 5044231522.

It is not a de Polignac number, because 2251324405 - 2⁷ = 2251324277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 185392 + ... + 197161.

It is an arithmetic number, because the mean of its divisors is an integer number (185921244).

Almost surely, 2^2251324405 is an apocalyptic number.

It is an amenable number.

2251324405 is a deficient number, since it is larger than the sum of its proper divisors (723415499).

2251324405 is a wasteful number, since it uses less digits than its factorization.

2251324405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382676.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2251324405 is about 47448.1233032456. The cubic root of 2251324405 is about 1310.6277520826.

Adding to 2251324405 its reverse (5044231522), we get a palindrome (7295555927).

The spelling of 2251324405 in words is "two billion, two hundred fifty-one million, three hundred twenty-four thousand, four hundred five".