4520444551261 has 2 divisors, whose sum is σ = 4520444551262. Its totient is φ = 4520444551260.

The previous prime is 4520444551243. The next prime is 4520444551291. The reversal of 4520444551261 is 1621554440254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4516181767161 + 4262784100 = 2125131^2 + 65290^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520444551261 - 2⁵ = 4520444551229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4520444551201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260222275630 + 2260222275631.

It is an arithmetic number, because the mean of its divisors is an integer number (2260222275631).

Almost surely, 2^{4520444551261} is an apocalyptic number.

It is an amenable number.

4520444551261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4520444551261 is an equidigital number, since it uses as much as digits as its factorization.

4520444551261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768000, while the sum is 43.

It can be divided in two parts, 4520444 and 551261, that added together give a palindrome (5071705).

The spelling of 4520444551261 in words is "four trillion, five hundred twenty billion, four hundred forty-four million, five hundred fifty-one thousand, two hundred sixty-one".