53859899 has 4 divisors (see below), whose sum is σ = 54142080. Its totient is φ = 53577720.

The previous prime is 53859887. The next prime is 53859941. The reversal of 53859899 is 99895835.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53859899 - 2⁸ = 53859643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53859499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140804 + ... + 141185.

It is an arithmetic number, because the mean of its divisors is an integer number (13535520).

Almost surely, 2^53859899 is an apocalyptic number.

53859899 is a deficient number, since it is larger than the sum of its proper divisors (282181).

53859899 is a wasteful number, since it uses less digits than its factorization.

53859899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282180.

The product of its digits is 3499200, while the sum is 56.

The square root of 53859899 is about 7338.9303716550. The cubic root of 53859899 is about 377.6491500160.

The spelling of 53859899 in words is "fifty-three million, eight hundred fifty-nine thousand, eight hundred ninety-nine".