548923657 has 2 divisors, whose sum is σ = 548923658. Its totient is φ = 548923656.

The previous prime is 548923651. The next prime is 548923709. The reversal of 548923657 is 756329845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342398016 + 206525641 = 18504^2 + 14371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548923657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 548923657.

It is not a weakly prime, because it can be changed into another prime (548923651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274461828 + 274461829.

It is an arithmetic number, because the mean of its divisors is an integer number (274461829).

Almost surely, 2^548923657 is an apocalyptic number.

It is an amenable number.

548923657 is a deficient number, since it is larger than the sum of its proper divisors (1).

548923657 is an equidigital number, since it uses as much as digits as its factorization.

548923657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The square root of 548923657 is about 23429.1198511596. The cubic root of 548923657 is about 818.7864544730.

The spelling of 548923657 in words is "five hundred forty-eight million, nine hundred twenty-three thousand, six hundred fifty-seven".