53891963 has 2 divisors, whose sum is σ = 53891964. Its totient is φ = 53891962.

The previous prime is 53891953. The next prime is 53891993. The reversal of 53891963 is 36919835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53891963 - 2⁸ = 53891707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53891933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26945981 + 26945982.

It is an arithmetic number, because the mean of its divisors is an integer number (26945982).

Almost surely, 2^53891963 is an apocalyptic number.

53891963 is a deficient number, since it is larger than the sum of its proper divisors (1).

53891963 is an equidigital number, since it uses as much as digits as its factorization.

53891963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 53891963 is about 7341.1145611549. The cubic root of 53891963 is about 377.7240761389.

The spelling of 53891963 in words is "fifty-three million, eight hundred ninety-one thousand, nine hundred sixty-three".