53641318477 has 2 divisors, whose sum is σ = 53641318478. Its totient is φ = 53641318476.

The previous prime is 53641318459. The next prime is 53641318537. The reversal of 53641318477 is 77481314635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46964957796 + 6676360681 = 216714^2 + 81709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53641318477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53641318477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53641318447) 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, 26820659238 + 26820659239.

It is an arithmetic number, because the mean of its divisors is an integer number (26820659239).

Almost surely, 2^53641318477 is an apocalyptic number.

It is an amenable number.

53641318477 is a deficient number, since it is larger than the sum of its proper divisors (1).

53641318477 is an equidigital number, since it uses as much as digits as its factorization.

53641318477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The spelling of 53641318477 in words is "fifty-three billion, six hundred forty-one million, three hundred eighteen thousand, four hundred seventy-seven".