53663887 has 2 divisors, whose sum is σ = 53663888. Its totient is φ = 53663886.

The previous prime is 53663881. The next prime is 53663893. The reversal of 53663887 is 78836635.

It is a balanced prime because it is at equal distance from previous prime (53663881) and next prime (53663893).

It is a cyclic number.

It is not a de Polignac number, because 53663887 - 2¹⁵ = 53631119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53663881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26831943 + 26831944.

It is an arithmetic number, because the mean of its divisors is an integer number (26831944).

Almost surely, 2^53663887 is an apocalyptic number.

53663887 is a deficient number, since it is larger than the sum of its proper divisors (1).

53663887 is an equidigital number, since it uses as much as digits as its factorization.

53663887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The square root of 53663887 is about 7325.5639373362. The cubic root of 53663887 is about 377.1904677270.

The spelling of 53663887 in words is "fifty-three million, six hundred sixty-three thousand, eight hundred eighty-seven".