53087889 has 8 divisors (see below), whose sum is σ = 74947680. Its totient is φ = 33310016.

The previous prime is 53087869. The next prime is 53087897. The reversal of 53087889 is 98878035.

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 53087889 - 2⁵ = 53087857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53087869) 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, 520419 + ... + 520520.

It is an arithmetic number, because the mean of its divisors is an integer number (9368460).

Almost surely, 2^53087889 is an apocalyptic number.

It is an amenable number.

53087889 is a deficient number, since it is larger than the sum of its proper divisors (21859791).

53087889 is a wasteful number, since it uses less digits than its factorization.

53087889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040959.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 53087889 is about 7286.1436302066. The cubic root of 53087889 is about 375.8360935857.

The spelling of 53087889 in words is "fifty-three million, eighty-seven thousand, eight hundred eighty-nine".