2251520024 has 16 divisors (see below), whose sum is σ = 4546338720. Its totient is φ = 1039163040.

The previous prime is 2251520017. The next prime is 2251520027. The reversal of 2251520024 is 4200251522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251520027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10824512 + ... + 10824719.

It is an arithmetic number, because the mean of its divisors is an integer number (284146170).

Almost surely, 2^2251520024 is an apocalyptic number.

It is an amenable number.

2251520024 is an abundant number, since it is smaller than the sum of its proper divisors (2294818696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251520024 is a wasteful number, since it uses less digits than its factorization.

2251520024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21649250 (or 21649246 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2251520024 is about 47450.1846571749. The cubic root of 2251520024 is about 1310.6657114077.

Adding to 2251520024 its reverse (4200251522), we get a palindrome (6451771546).

The spelling of 2251520024 in words is "two billion, two hundred fifty-one million, five hundred twenty thousand, twenty-four".