2545463321 has 2 divisors, whose sum is σ = 2545463322. Its totient is φ = 2545463320.

The previous prime is 2545463309. The next prime is 2545463369. The reversal of 2545463321 is 1233645452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1714870921 + 830592400 = 41411^2 + 28820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545463321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545663321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272731660 + 1272731661.

It is an arithmetic number, because the mean of its divisors is an integer number (1272731661).

Almost surely, 2^2545463321 is an apocalyptic number.

It is an amenable number.

2545463321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545463321 is an equidigital number, since it uses as much as digits as its factorization.

2545463321 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2545463321 is about 50452.5848792706. The cubic root of 2545463321 is about 1365.3865312604.

The spelling of 2545463321 in words is "two billion, five hundred forty-five million, four hundred sixty-three thousand, three hundred twenty-one".