52686774 has 96 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 14152320.

The previous prime is 52686773. The next prime is 52686787. The reversal of 52686774 is 47768625.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52686773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57379 + ... + 58289.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^52686774 is an apocalyptic number.

52686774 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 52686774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71705088).

52686774 is an abundant number, since it is smaller than the sum of its proper divisors (90723402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52686774 is a wasteful number, since it uses less digits than its factorization.

52686774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 940 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 52686774 is about 7258.5655607703. The cubic root of 52686774 is about 374.8871340335.

The spelling of 52686774 in words is "fifty-two million, six hundred eighty-six thousand, seven hundred seventy-four".