52187889 has 16 divisors (see below), whose sum is σ = 78881600. Its totient is φ = 30424896.

The previous prime is 52187867. The next prime is 52187903. The reversal of 52187889 is 98878125.

52187889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52187889 - 2⁵ = 52187857 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (52187819) 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 15 ways as a sum of consecutive naturals, for example, 34474 + ... + 35955.

It is an arithmetic number, because the mean of its divisors is an integer number (4930100).

Almost surely, 2^52187889 is an apocalyptic number.

It is an amenable number.

52187889 is a deficient number, since it is larger than the sum of its proper divisors (26693711).

52187889 is a wasteful number, since it uses less digits than its factorization.

52187889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70464.

The product of its digits is 322560, while the sum is 48.

The square root of 52187889 is about 7224.1185621500. The cubic root of 52187889 is about 373.7001251852.

It can be divided in two parts, 521 and 87889, that added together give a triangular number (88410 = T₄₂₀).

The spelling of 52187889 in words is "fifty-two million, one hundred eighty-seven thousand, eight hundred eighty-nine".