53156417 has 2 divisors, whose sum is σ = 53156418. Its totient is φ = 53156416.

The previous prime is 53156371. The next prime is 53156429. The reversal of 53156417 is 71465135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53129521 + 26896 = 7289^2 + 164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53156417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53156447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26578208 + 26578209.

It is an arithmetic number, because the mean of its divisors is an integer number (26578209).

Almost surely, 2^53156417 is an apocalyptic number.

It is an amenable number.

53156417 is a deficient number, since it is larger than the sum of its proper divisors (1).

53156417 is an equidigital number, since it uses as much as digits as its factorization.

53156417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 53156417 is about 7290.8447384374. The cubic root of 53156417 is about 375.9977388765.

The spelling of 53156417 in words is "fifty-three million, one hundred fifty-six thousand, four hundred seventeen".