53164649 has 2 divisors, whose sum is σ = 53164650. Its totient is φ = 53164648.

The previous prime is 53164619. The next prime is 53164651. The reversal of 53164649 is 94646135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45657049 + 7507600 = 6757^2 + 2740^2 .

It is a cyclic number.

It is not a de Polignac number, because 53164649 - 2¹² = 53160553 is a prime.

Together with 53164651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53164609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26582324 + 26582325.

It is an arithmetic number, because the mean of its divisors is an integer number (26582325).

Almost surely, 2^53164649 is an apocalyptic number.

It is an amenable number.

53164649 is a deficient number, since it is larger than the sum of its proper divisors (1).

53164649 is an equidigital number, since it uses as much as digits as its factorization.

53164649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 38.

The square root of 53164649 is about 7291.4092602185. The cubic root of 53164649 is about 376.0171473431.

The spelling of 53164649 in words is "fifty-three million, one hundred sixty-four thousand, six hundred forty-nine".