53643157 has 2 divisors, whose sum is σ = 53643158. Its totient is φ = 53643156.

The previous prime is 53643131. The next prime is 53643167. The reversal of 53643157 is 75134635.

53643157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29495761 + 24147396 = 5431^2 + 4914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53643157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53643167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821578 + 26821579.

It is an arithmetic number, because the mean of its divisors is an integer number (26821579).

Almost surely, 2^53643157 is an apocalyptic number.

It is an amenable number.

53643157 is a deficient number, since it is larger than the sum of its proper divisors (1).

53643157 is an equidigital number, since it uses as much as digits as its factorization.

53643157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 34.

The square root of 53643157 is about 7324.1488925335. The cubic root of 53643157 is about 377.1418927549.

The spelling of 53643157 in words is "fifty-three million, six hundred forty-three thousand, one hundred fifty-seven".