52066040 has 64 divisors (see below), whose sum is σ = 127008000. Its totient is φ = 19095552.

The previous prime is 52066037. The next prime is 52066051. The reversal of 52066040 is 4066025.

It is a junction number, because it is equal to n+sod(n) for n = 52065997 and 52066015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115736 + ... + 116184.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^52066040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52066040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63504000).

52066040 is an abundant number, since it is smaller than the sum of its proper divisors (74941960).

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

52066040 is a wasteful number, since it uses less digits than its factorization.

52066040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696 (or 692 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52066040 is about 7215.6801481219. The cubic root of 52066040 is about 373.4090584771.

The spelling of 52066040 in words is "fifty-two million, sixty-six thousand, forty", and thus it is an eban number.