2251504345 has 16 divisors (see below), whose sum is σ = 2764258560. Its totient is φ = 1760039424.

The previous prime is 2251504331. The next prime is 2251504357. The reversal of 2251504345 is 5434051522.

2251504345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2251504345 - 2¹⁹ = 2250980057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8934 + ... + 67696.

It is an arithmetic number, because the mean of its divisors is an integer number (172766160).

Almost surely, 2^2251504345 is an apocalyptic number.

It is an amenable number.

2251504345 is a deficient number, since it is larger than the sum of its proper divisors (512754215).

2251504345 is an equidigital number, since it uses as much as digits as its factorization.

2251504345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58944.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2251504345 is about 47450.0194415134. The cubic root of 2251504345 is about 1310.6626690222.

Adding to 2251504345 its reverse (5434051522), we get a palindrome (7685555867).

The spelling of 2251504345 in words is "two billion, two hundred fifty-one million, five hundred four thousand, three hundred forty-five".