2251364543 has 4 divisors (see below), whose sum is σ = 2253197640. Its totient is φ = 2249531448.

The previous prime is 2251364509. The next prime is 2251364551. The reversal of 2251364543 is 3454631522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251364543 - 2¹⁰ = 2251363519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251364573) 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, 914705 + ... + 917162.

It is an arithmetic number, because the mean of its divisors is an integer number (563299410).

Almost surely, 2^2251364543 is an apocalyptic number.

2251364543 is a deficient number, since it is larger than the sum of its proper divisors (1833097).

2251364543 is a wasteful number, since it uses less digits than its factorization.

2251364543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833096.

The product of its digits is 86400, while the sum is 35.

The square root of 2251364543 is about 47448.5462685634. The cubic root of 2251364543 is about 1310.6355409296.

The spelling of 2251364543 in words is "two billion, two hundred fifty-one million, three hundred sixty-four thousand, five hundred forty-three".