53394881 has 2 divisors, whose sum is σ = 53394882. Its totient is φ = 53394880.

The previous prime is 53394853. The next prime is 53394889. The reversal of 53394881 is 18849335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52780225 + 614656 = 7265^2 + 784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53394881 is a prime.

It is a super-2 number, since 2×53394881² = 5702026634008322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53394889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26697440 + 26697441.

It is an arithmetic number, because the mean of its divisors is an integer number (26697441).

Almost surely, 2^53394881 is an apocalyptic number.

It is an amenable number.

53394881 is a deficient number, since it is larger than the sum of its proper divisors (1).

53394881 is an equidigital number, since it uses as much as digits as its factorization.

53394881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The square root of 53394881 is about 7307.1800990533. The cubic root of 53394881 is about 376.5591523184.

The spelling of 53394881 in words is "fifty-three million, three hundred ninety-four thousand, eight hundred eighty-one".