5725931639 has 4 divisors (see below), whose sum is σ = 5726087256. Its totient is φ = 5725776024.

The previous prime is 5725931623. The next prime is 5725931641. The reversal of 5725931639 is 9361395275.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5725931639 - 2⁴ = 5725931623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5725931609) 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 in 3 ways as a sum of consecutive naturals, for example, 11732 + ... + 107654.

It is an arithmetic number, because the mean of its divisors is an integer number (1431521814).

Almost surely, 2^5725931639 is an apocalyptic number.

5725931639 is a deficient number, since it is larger than the sum of its proper divisors (155617).

5725931639 is an equidigital number, since it uses as much as digits as its factorization.

5725931639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155616.

The product of its digits is 1530900, while the sum is 50.

The square root of 5725931639 is about 75669.8859454671. The cubic root of 5725931639 is about 1789.0207849161.

The spelling of 5725931639 in words is "five billion, seven hundred twenty-five million, nine hundred thirty-one thousand, six hundred thirty-nine".