5250215557 has 2 divisors, whose sum is σ = 5250215558. Its totient is φ = 5250215556.

The previous prime is 5250215533. The next prime is 5250215561. The reversal of 5250215557 is 7555120525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107389156 + 142826401 = 71466^2 + 11951^2 .

It is a cyclic number.

It is not a de Polignac number, because 5250215557 - 2¹⁵ = 5250182789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5250215857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2625107778 + 2625107779.

It is an arithmetic number, because the mean of its divisors is an integer number (2625107779).

Almost surely, 2^5250215557 is an apocalyptic number.

It is an amenable number.

5250215557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5250215557 is an equidigital number, since it uses as much as digits as its factorization.

5250215557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87500, while the sum is 37.

The square root of 5250215557 is about 72458.3712002968. The cubic root of 5250215557 is about 1738.0371088439.

The spelling of 5250215557 in words is "five billion, two hundred fifty million, two hundred fifteen thousand, five hundred fifty-seven".