53642863 has 2 divisors, whose sum is σ = 53642864. Its totient is φ = 53642862.

The previous prime is 53642821. The next prime is 53642867. The reversal of 53642863 is 36824635.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53642863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53642867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821431 + 26821432.

It is an arithmetic number, because the mean of its divisors is an integer number (26821432).

Almost surely, 2^53642863 is an apocalyptic number.

53642863 is a deficient number, since it is larger than the sum of its proper divisors (1).

53642863 is an equidigital number, since it uses as much as digits as its factorization.

53642863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 37.

The square root of 53642863 is about 7324.1288219146. The cubic root of 53642863 is about 377.1412037579.

The spelling of 53642863 in words is "fifty-three million, six hundred forty-two thousand, eight hundred sixty-three".