52305052440 has 32 divisors (see below), whose sum is σ = 156915157680. Its totient is φ = 13948013952.

The previous prime is 52305052433. The next prime is 52305052517. The reversal of 52305052440 is 4425050325.

52305052440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52305052440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52305052398 and 52305052407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217937599 + ... + 217937838.

Almost surely, 2^52305052440 is an apocalyptic number.

It is an amenable number.

52305052440 is an abundant number, since it is smaller than the sum of its proper divisors (104610105240).

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

52305052440 is a wasteful number, since it uses less digits than its factorization.

52305052440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435875451 (or 435875447 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 52305052440 in words is "fifty-two billion, three hundred five million, fifty-two thousand, four hundred forty".