5356689421 has 2 divisors, whose sum is σ = 5356689422. Its totient is φ = 5356689420.

The previous prime is 5356689367. The next prime is 5356689427. The reversal of 5356689421 is 1249866535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4410819396 + 945870025 = 66414^2 + 30755^2 .

It is a cyclic number.

It is not a de Polignac number, because 5356689421 - 2¹⁵ = 5356656653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5356689427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2678344710 + 2678344711.

It is an arithmetic number, because the mean of its divisors is an integer number (2678344711).

Almost surely, 2^5356689421 is an apocalyptic number.

It is an amenable number.

5356689421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5356689421 is an equidigital number, since it uses as much as digits as its factorization.

5356689421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 49.

The square root of 5356689421 is about 73189.4078470375. The cubic root of 5356689421 is about 1749.7076432429.

The spelling of 5356689421 in words is "five billion, three hundred fifty-six million, six hundred eighty-nine thousand, four hundred twenty-one".