53487733 has 8 divisors (see below), whose sum is σ = 57719648. Its totient is φ = 49272624.

The previous prime is 53487703. The next prime is 53487751. The reversal of 53487733 is 33778435.

It is a happy number.

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 53487733 - 2⁹ = 53487221 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 (53487703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2866 + ... + 10732.

It is an arithmetic number, because the mean of its divisors is an integer number (7214956).

Almost surely, 2^53487733 is an apocalyptic number.

It is an amenable number.

53487733 is a deficient number, since it is larger than the sum of its proper divisors (4231915).

53487733 is a wasteful number, since it uses less digits than its factorization.

53487733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8403.

The product of its digits is 211680, while the sum is 40.

The square root of 53487733 is about 7313.5308162337. The cubic root of 53487733 is about 376.7773007130. Note that the first 3 decimals are identical.

The spelling of 53487733 in words is "fifty-three million, four hundred eighty-seven thousand, seven hundred thirty-three".