52686907 has 24 divisors (see below), whose sum is σ = 66706416. Its totient is φ = 41243328.

The previous prime is 52686901. The next prime is 52686919. The reversal of 52686907 is 70968625.

It is not a de Polignac number, because 52686907 - 2¹¹ = 52684859 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52686901) 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, 67773 + ... + 68545.

It is an arithmetic number, because the mean of its divisors is an integer number (2779434).

Almost surely, 2^52686907 is an apocalyptic number.

52686907 is a deficient number, since it is larger than the sum of its proper divisors (14019509).

52686907 is a wasteful number, since it uses less digits than its factorization.

52686907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 52686907 is about 7258.5747223542. The cubic root of 52686907 is about 374.8874494823.

The spelling of 52686907 in words is "fifty-two million, six hundred eighty-six thousand, nine hundred seven".