12050053657 has 2 divisors, whose sum is σ = 12050053658. Its totient is φ = 12050053656.

The previous prime is 12050053619. The next prime is 12050053663. The reversal of 12050053657 is 75635005021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11096726281 + 953327376 = 105341^2 + 30876^2 .

It is an emirp because it is prime and its reverse (75635005021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12050053657 is a prime.

It is not a weakly prime, because it can be changed into another prime (12050053957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025026828 + 6025026829.

It is an arithmetic number, because the mean of its divisors is an integer number (6025026829).

Almost surely, 2^12050053657 is an apocalyptic number.

It is an amenable number.

12050053657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12050053657 is an equidigital number, since it uses as much as digits as its factorization.

12050053657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

Adding to 12050053657 its reverse (75635005021), we get a palindrome (87685058678).

The spelling of 12050053657 in words is "twelve billion, fifty million, fifty-three thousand, six hundred fifty-seven".