53668897 has 2 divisors, whose sum is σ = 53668898. Its totient is φ = 53668896.

The previous prime is 53668883. The next prime is 53668903. The reversal of 53668897 is 79886635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48986001 + 4682896 = 6999^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 53668897 - 2¹⁵ = 53636129 is a prime.

It is not a weakly prime, because it can be changed into another prime (53668817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26834448 + 26834449.

It is an arithmetic number, because the mean of its divisors is an integer number (26834449).

Almost surely, 2^53668897 is an apocalyptic number.

It is an amenable number.

53668897 is a deficient number, since it is larger than the sum of its proper divisors (1).

53668897 is an equidigital number, since it uses as much as digits as its factorization.

53668897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 52.

The square root of 53668897 is about 7325.9058825513. The cubic root of 53668897 is about 377.2022053874.

The spelling of 53668897 in words is "fifty-three million, six hundred sixty-eight thousand, eight hundred ninety-seven".