53387449 has 8 divisors (see below), whose sum is σ = 53893728. Its totient is φ = 52884000.

The previous prime is 53387443. The next prime is 53387461. The reversal of 53387449 is 94478335.

53387449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53387449 - 2⁵ = 53387417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53387443) 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 7 ways as a sum of consecutive naturals, for example, 56509 + ... + 57445.

It is an arithmetic number, because the mean of its divisors is an integer number (6736716).

Almost surely, 2^53387449 is an apocalyptic number.

It is an amenable number.

53387449 is a deficient number, since it is larger than the sum of its proper divisors (506279).

53387449 is a wasteful number, since it uses less digits than its factorization.

53387449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 362880, while the sum is 43.

The square root of 53387449 is about 7306.6715404485. The cubic root of 53387449 is about 376.5416804970.

The spelling of 53387449 in words is "fifty-three million, three hundred eighty-seven thousand, four hundred forty-nine".