2251452445 has 12 divisors (see below), whose sum is σ = 2969685180. Its totient is φ = 1637419520.

The previous prime is 2251452403. The next prime is 2251452457. The reversal of 2251452445 is 5442541522.

It can be written as a sum of positive squares in 2 ways, for example, as 1738973401 + 512479044 = 41701^2 + 22638^2 .

It is not a de Polignac number, because 2251452445 - 2¹³ = 2251444253 is a prime.

It is a super-3 number, since 3×2251452445³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2251452445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1860100 + ... + 1861309.

It is an arithmetic number, because the mean of its divisors is an integer number (247473765).

Almost surely, 2^2251452445 is an apocalyptic number.

It is an amenable number.

2251452445 is a deficient number, since it is larger than the sum of its proper divisors (718232735).

2251452445 is a wasteful number, since it uses less digits than its factorization.

2251452445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3721436 (or 3721425 counting only the distinct ones).

The product of its digits is 64000, while the sum is 34.

The square root of 2251452445 is about 47449.4725471211. The cubic root of 2251452445 is about 1310.6525981385.

Adding to 2251452445 its reverse (5442541522), we get a palindrome (7693993967).

The spelling of 2251452445 in words is "two billion, two hundred fifty-one million, four hundred fifty-two thousand, four hundred forty-five".