53663837 has 2 divisors, whose sum is σ = 53663838. Its totient is φ = 53663836.

The previous prime is 53663803. The next prime is 53663839. The reversal of 53663837 is 73836635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 2669956 = 7141^2 + 1634^2 .

It is a cyclic number.

It is not a de Polignac number, because 53663837 - 2⁶ = 53663773 is a prime.

Together with 53663839, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 53663794 and 53663803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53663839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831918 + 26831919.

It is an arithmetic number, because the mean of its divisors is an integer number (26831919).

Almost surely, 2^53663837 is an apocalyptic number.

It is an amenable number.

53663837 is a deficient number, since it is larger than the sum of its proper divisors (1).

53663837 is an equidigital number, since it uses as much as digits as its factorization.

53663837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 53663837 is about 7325.5605246288. The cubic root of 53663837 is about 377.1903505810.

The spelling of 53663837 in words is "fifty-three million, six hundred sixty-three thousand, eight hundred thirty-seven".