2251210405 has 16 divisors (see below), whose sum is σ = 2796520320. Its totient is φ = 1737675072.

The previous prime is 2251210387. The next prime is 2251210447. The reversal of 2251210405 is 5040121522.

It is a cyclic number.

It is not a de Polignac number, because 2251210405 - 2¹⁵ = 2251177637 is a prime.

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, 248872 + ... + 257758.

It is an arithmetic number, because the mean of its divisors is an integer number (174782520).

Almost surely, 2^2251210405 is an apocalyptic number.

It is an amenable number.

2251210405 is a deficient number, since it is larger than the sum of its proper divisors (545309915).

2251210405 is a wasteful number, since it uses less digits than its factorization.

2251210405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10668.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2251210405 is about 47446.9219760355. The cubic root of 2251210405 is about 1310.6056296843.

Adding to 2251210405 its reverse (5040121522), we get a palindrome (7291331927).

The spelling of 2251210405 in words is "two billion, two hundred fifty-one million, two hundred ten thousand, four hundred five".