5237245421 has 2 divisors, whose sum is σ = 5237245422. Its totient is φ = 5237245420.

The previous prime is 5237245393. The next prime is 5237245439. The reversal of 5237245421 is 1245427325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5235246025 + 1999396 = 72355^2 + 1414^2 .

It is a cyclic number.

It is not a de Polignac number, because 5237245421 - 2⁶ = 5237245357 is a prime.

It is a super-3 number, since 3×5237245421³ (a number of 30 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5237245441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2618622710 + 2618622711.

It is an arithmetic number, because the mean of its divisors is an integer number (2618622711).

Almost surely, 2^5237245421 is an apocalyptic number.

It is an amenable number.

5237245421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5237245421 is an equidigital number, since it uses as much as digits as its factorization.

5237245421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 35.

The square root of 5237245421 is about 72368.8152521513. The cubic root of 5237245421 is about 1736.6047126553.

The spelling of 5237245421 in words is "five billion, two hundred thirty-seven million, two hundred forty-five thousand, four hundred twenty-one".