504549651461 has 2 divisors, whose sum is σ = 504549651462. Its totient is φ = 504549651460.

The previous prime is 504549651439. The next prime is 504549651481. The reversal of 504549651461 is 164156945405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304891708900 + 199657942561 = 552170^2 + 446831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504549651461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504549651481) 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, 252274825730 + 252274825731.

It is an arithmetic number, because the mean of its divisors is an integer number (252274825731).

Almost surely, 2^504549651461 is an apocalyptic number.

It is an amenable number.

504549651461 is a deficient number, since it is larger than the sum of its proper divisors (1).

504549651461 is an equidigital number, since it uses as much as digits as its factorization.

504549651461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 504549651461 in words is "five hundred four billion, five hundred forty-nine million, six hundred fifty-one thousand, four hundred sixty-one".