53155399 has 4 divisors (see below), whose sum is σ = 57987720. Its totient is φ = 48323080.

The previous prime is 53155397. The next prime is 53155423. The reversal of 53155399 is 99355135.

53155399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53155399 - 2¹ = 53155397 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 (53155397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416144 + ... + 2416165.

It is an arithmetic number, because the mean of its divisors is an integer number (14496930).

Almost surely, 2^53155399 is an apocalyptic number.

53155399 is a deficient number, since it is larger than the sum of its proper divisors (4832321).

53155399 is a wasteful number, since it uses less digits than its factorization.

53155399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832320.

The product of its digits is 91125, while the sum is 40.

The square root of 53155399 is about 7290.7749245193. The cubic root of 53155399 is about 375.9953386136.

The spelling of 53155399 in words is "fifty-three million, one hundred fifty-five thousand, three hundred ninety-nine".