52015793940 has 288 divisors, whose sum is σ = 176892678144. Its totient is φ = 12264026880.

The previous prime is 52015793939. The next prime is 52015794041. The reversal of 52015793940 is 4939751025.

It is a happy number.

52015793940 is a `hidden beast` number, since 5 + 2 + 0 + 1 + 579 + 39 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15539347 + ... + 15542693.

It is an arithmetic number, because the mean of its divisors is an integer number (614210688).

Almost surely, 2^52015793940 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 52015793940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88446339072).

52015793940 is an abundant number, since it is smaller than the sum of its proper divisors (124876884204).

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

52015793940 is a wasteful number, since it uses less digits than its factorization.

52015793940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3587 (or 3582 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 52015793940 in words is "fifty-two billion, fifteen million, seven hundred ninety-three thousand, nine hundred forty".