53887019 has 8 divisors (see below), whose sum is σ = 54598320. Its totient is φ = 53179776.

The previous prime is 53887013. The next prime is 53887027. The reversal of 53887019 is 91078835.

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 a de Polignac number, because none of the positive numbers 2^k-53887019 is a prime.

It is a super-5 number, since 5×53887019⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53887013) 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, 32687 + ... + 34295.

It is an arithmetic number, because the mean of its divisors is an integer number (6824790).

Almost surely, 2^53887019 is an apocalyptic number.

53887019 is a deficient number, since it is larger than the sum of its proper divisors (711301).

53887019 is a wasteful number, since it uses less digits than its factorization.

53887019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 53887019 is about 7340.7778198226. Note that the first 3 decimals coincide. The cubic root of 53887019 is about 377.7125250971.

The spelling of 53887019 in words is "fifty-three million, eight hundred eighty-seven thousand, nineteen".