53248999 has 4 divisors (see below), whose sum is σ = 53296336. Its totient is φ = 53201664.

The previous prime is 53248973. The next prime is 53249029. The reversal of 53248999 is 99984235.

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 53248999 - 2¹⁵ = 53216231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53248919) 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, 21939 + ... + 24244.

It is an arithmetic number, because the mean of its divisors is an integer number (13324084).

Almost surely, 2^53248999 is an apocalyptic number.

53248999 is a deficient number, since it is larger than the sum of its proper divisors (47337).

53248999 is a wasteful number, since it uses less digits than its factorization.

53248999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47336.

The product of its digits is 699840, while the sum is 49.

The square root of 53248999 is about 7297.1911719510. The cubic root of 53248999 is about 376.2159027684.

The spelling of 53248999 in words is "fifty-three million, two hundred forty-eight thousand, nine hundred ninety-nine".