53985499 has 4 divisors (see below), whose sum is σ = 54089640. Its totient is φ = 53881360.

The previous prime is 53985473. The next prime is 53985509. The reversal of 53985499 is 99458935.

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 53985499 - 2⁵ = 53985467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53985419) 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, 51289 + ... + 52330.

It is an arithmetic number, because the mean of its divisors is an integer number (13522410).

Almost surely, 2^53985499 is an apocalyptic number.

53985499 is a deficient number, since it is larger than the sum of its proper divisors (104141).

53985499 is a wasteful number, since it uses less digits than its factorization.

53985499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104140.

The product of its digits is 1749600, while the sum is 52.

The square root of 53985499 is about 7347.4824940247. The cubic root of 53985499 is about 377.9424783929.

The spelling of 53985499 in words is "fifty-three million, nine hundred eighty-five thousand, four hundred ninety-nine".