6725004557 has 2 divisors, whose sum is σ = 6725004558. Its totient is φ = 6725004556.

The previous prime is 6725004553. The next prime is 6725004593. The reversal of 6725004557 is 7554005276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6583537321 + 141467236 = 81139^2 + 11894^2 .

It is a cyclic number.

It is not a de Polignac number, because 6725004557 - 2² = 6725004553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6725004553) 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, 3362502278 + 3362502279.

It is an arithmetic number, because the mean of its divisors is an integer number (3362502279).

Almost surely, 2^6725004557 is an apocalyptic number.

It is an amenable number.

6725004557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6725004557 is an equidigital number, since it uses as much as digits as its factorization.

6725004557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 6725004557 is about 82006.1251187983. The cubic root of 6725004557 is about 1887.5459276400.

The spelling of 6725004557 in words is "six billion, seven hundred twenty-five million, four thousand, five hundred fifty-seven".