53859887 has 2 divisors, whose sum is σ = 53859888. Its totient is φ = 53859886.

The previous prime is 53859881. The next prime is 53859941. The reversal of 53859887 is 78895835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53859887 - 2⁶ = 53859823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53859881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26929943 + 26929944.

It is an arithmetic number, because the mean of its divisors is an integer number (26929944).

Almost surely, 2^53859887 is an apocalyptic number.

53859887 is a deficient number, since it is larger than the sum of its proper divisors (1).

53859887 is an equidigital number, since it uses as much as digits as its factorization.

53859887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 53.

The square root of 53859887 is about 7338.9295540971. The cubic root of 53859887 is about 377.6491219692.

The spelling of 53859887 in words is "fifty-three million, eight hundred fifty-nine thousand, eight hundred eighty-seven".