53206157 has 2 divisors, whose sum is σ = 53206158. Its totient is φ = 53206156.

The previous prime is 53206133. The next prime is 53206159. The reversal of 53206157 is 75160235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53202436 + 3721 = 7294^2 + 61^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53206157 is a prime.

Together with 53206159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53206159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26603078 + 26603079.

It is an arithmetic number, because the mean of its divisors is an integer number (26603079).

Almost surely, 2^53206157 is an apocalyptic number.

It is an amenable number.

53206157 is a deficient number, since it is larger than the sum of its proper divisors (1).

53206157 is an equidigital number, since it uses as much as digits as its factorization.

53206157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 53206157 is about 7294.2550682026. The cubic root of 53206157 is about 376.1149796428.

The spelling of 53206157 in words is "fifty-three million, two hundred six thousand, one hundred fifty-seven".