52671861 has 24 divisors (see below), whose sum is σ = 84935136. Its totient is φ = 31177440.

The previous prime is 52671851. The next prime is 52671869. The reversal of 52671861 is 16817625.

52671861 is a `hidden beast` number, since 526 + 71 + 8 + 61 = 666.

It is not a de Polignac number, because 52671861 - 2⁷ = 52671733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52671869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1930 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (3538964).

Almost surely, 2^52671861 is an apocalyptic number.

It is an amenable number.

52671861 is a deficient number, since it is larger than the sum of its proper divisors (32263275).

52671861 is a wasteful number, since it uses less digits than its factorization.

52671861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12433 (or 12430 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 52671861 is about 7257.5382189831. The cubic root of 52671861 is about 374.8517600742.

The spelling of 52671861 in words is "fifty-two million, six hundred seventy-one thousand, eight hundred sixty-one".