5247525421 has 2 divisors, whose sum is σ = 5247525422. Its totient is φ = 5247525420.

The previous prime is 5247525401. The next prime is 5247525433. The reversal of 5247525421 is 1245257425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3258811396 + 1988714025 = 57086^2 + 44595^2 .

It is a cyclic number.

It is not a de Polignac number, because 5247525421 - 2¹¹ = 5247523373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5247525401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2623762710 + 2623762711.

It is an arithmetic number, because the mean of its divisors is an integer number (2623762711).

Almost surely, 2^5247525421 is an apocalyptic number.

It is an amenable number.

5247525421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5247525421 is an equidigital number, since it uses as much as digits as its factorization.

5247525421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112000, while the sum is 37.

The square root of 5247525421 is about 72439.8055008433. The cubic root of 5247525421 is about 1737.7402096064.

The spelling of 5247525421 in words is "five billion, two hundred forty-seven million, five hundred twenty-five thousand, four hundred twenty-one".