5253421009 has 2 divisors, whose sum is σ = 5253421010. Its totient is φ = 5253421008.

The previous prime is 5253420967. The next prime is 5253421049. The reversal of 5253421009 is 9001243525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5077275025 + 176145984 = 71255^2 + 13272^2 .

It is a cyclic number.

It is not a de Polignac number, because 5253421009 - 2¹³ = 5253412817 is a prime.

It is not a weakly prime, because it can be changed into another prime (5253421049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626710504 + 2626710505.

It is an arithmetic number, because the mean of its divisors is an integer number (2626710505).

Almost surely, 2^5253421009 is an apocalyptic number.

It is an amenable number.

5253421009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5253421009 is an equidigital number, since it uses as much as digits as its factorization.

5253421009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5253421009 is about 72480.4870913545. The cubic root of 5253421009 is about 1738.3907489972.

The spelling of 5253421009 in words is "five billion, two hundred fifty-three million, four hundred twenty-one thousand, nine".