7250703821 has 2 divisors, whose sum is σ = 7250703822. Its totient is φ = 7250703820.

The previous prime is 7250703787. The next prime is 7250703827. The reversal of 7250703821 is 1283070527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4784488900 + 2466214921 = 69170^2 + 49661^2 .

It is an emirp because it is prime and its reverse (1283070527) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7250703821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7250703827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3625351910 + 3625351911.

It is an arithmetic number, because the mean of its divisors is an integer number (3625351911).

Almost surely, 2^7250703821 is an apocalyptic number.

It is an amenable number.

7250703821 is a deficient number, since it is larger than the sum of its proper divisors (1).

7250703821 is an equidigital number, since it uses as much as digits as its factorization.

7250703821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 7250703821 is about 85151.0647085519. The cubic root of 7250703821 is about 1935.5009482705.

The spelling of 7250703821 in words is "seven billion, two hundred fifty million, seven hundred three thousand, eight hundred twenty-one".