52818940 has 12 divisors (see below), whose sum is σ = 110919816. Its totient is φ = 21127568.

The previous prime is 52818923. The next prime is 52818967. The reversal of 52818940 is 4981825.

It is a self number, because there is not a number n which added to its sum of digits gives 52818940.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1320454 + ... + 1320493.

It is an arithmetic number, because the mean of its divisors is an integer number (9243318).

Almost surely, 2^52818940 is an apocalyptic number.

It is an amenable number.

52818940 is an abundant number, since it is smaller than the sum of its proper divisors (58100876).

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

52818940 is a wasteful number, since it uses less digits than its factorization.

52818940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640956 (or 2640954 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 52818940 is about 7267.6639988376. The cubic root of 52818940 is about 375.2003433181.

The spelling of 52818940 in words is "fifty-two million, eight hundred eighteen thousand, nine hundred forty".