5244520381 has 2 divisors, whose sum is σ = 5244520382. Its totient is φ = 5244520380.

The previous prime is 5244520367. The next prime is 5244520403. The reversal of 5244520381 is 1830254425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4809422500 + 435097881 = 69350^2 + 20859^2 .

It is a cyclic number.

It is not a de Polignac number, because 5244520381 - 2¹⁵ = 5244487613 is a prime.

It is a super-2 number, since 2×5244520381² = 55009988053448770322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5244520321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2622260190 + 2622260191.

It is an arithmetic number, because the mean of its divisors is an integer number (2622260191).

Almost surely, 2^5244520381 is an apocalyptic number.

It is an amenable number.

5244520381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5244520381 is an equidigital number, since it uses as much as digits as its factorization.

5244520381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 5244520381 is about 72419.0608955957. The cubic root of 5244520381 is about 1737.4084357041.

It can be divided in two parts, 5244 and 520381, that added together give a square (525625 = 725²).

The spelling of 5244520381 in words is "five billion, two hundred forty-four million, five hundred twenty thousand, three hundred eighty-one".