52187669 has 8 divisors (see below), whose sum is σ = 53397792. Its totient is φ = 50986000.

The previous prime is 52187659. The next prime is 52187693. The reversal of 52187669 is 96678125.

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

It is not a de Polignac number, because 52187669 - 2⁸ = 52187413 is a prime.

It is a super-2 number, since 2×52187669² = 5447105591307122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52187659) 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, 11342 + ... + 15264.

It is an arithmetic number, because the mean of its divisors is an integer number (6674724).

Almost surely, 2^52187669 is an apocalyptic number.

It is an amenable number.

52187669 is a deficient number, since it is larger than the sum of its proper divisors (1210123).

52187669 is a wasteful number, since it uses less digits than its factorization.

52187669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4227.

The product of its digits is 181440, while the sum is 44.

The square root of 52187669 is about 7224.1033353628. The cubic root of 52187669 is about 373.6996000689.

The spelling of 52187669 in words is "fifty-two million, one hundred eighty-seven thousand, six hundred sixty-nine".