53486243357 has 2 divisors, whose sum is σ = 53486243358. Its totient is φ = 53486243356.

The previous prime is 53486243347. The next prime is 53486243407. The reversal of 53486243357 is 75334268435.

It is a happy number.

It is an a-pointer prime, because the next prime (53486243407) can be obtained adding 53486243357 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30434198116 + 23052045241 = 174454^2 + 151829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53486243357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53486243347) 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, 26743121678 + 26743121679.

It is an arithmetic number, because the mean of its divisors is an integer number (26743121679).

Almost surely, 2^53486243357 is an apocalyptic number.

It is an amenable number.

53486243357 is a deficient number, since it is larger than the sum of its proper divisors (1).

53486243357 is an equidigital number, since it uses as much as digits as its factorization.

53486243357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 50.

The spelling of 53486243357 in words is "fifty-three billion, four hundred eighty-six million, two hundred forty-three thousand, three hundred fifty-seven".