5725439 has 2 divisors, whose sum is σ = 5725440. Its totient is φ = 5725438.

The previous prime is 5725409. The next prime is 5725451. The reversal of 5725439 is 9345275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5725439 - 2¹² = 5721343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5725399 and 5725408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5725409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2862719 + 2862720.

It is an arithmetic number, because the mean of its divisors is an integer number (2862720).

Almost surely, 2^5725439 is an apocalyptic number.

5725439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5725439 is an equidigital number, since it uses as much as digits as its factorization.

5725439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 5725439 is about 2392.7889585168. The cubic root of 5725439 is about 178.8969476428.

The spelling of 5725439 in words is "five million, seven hundred twenty-five thousand, four hundred thirty-nine".