53919863 has 2 divisors, whose sum is σ = 53919864. Its totient is φ = 53919862.

The previous prime is 53919851. The next prime is 53919883. The reversal of 53919863 is 36891935.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53919863 - 2⁶ = 53919799 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53919823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26959931 + 26959932.

It is an arithmetic number, because the mean of its divisors is an integer number (26959932).

Almost surely, 2^53919863 is an apocalyptic number.

53919863 is a deficient number, since it is larger than the sum of its proper divisors (1).

53919863 is an equidigital number, since it uses as much as digits as its factorization.

53919863 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 53919863 is about 7343.0145716865. The cubic root of 53919863 is about 377.7892477839.

It can be divided in two parts, 539 and 19863, that added together give a palindrome (20402).

The spelling of 53919863 in words is "fifty-three million, nine hundred nineteen thousand, eight hundred sixty-three".