52780030530 has 64 divisors (see below), whose sum is σ = 130852454400. Its totient is φ = 13610842560.

The previous prime is 52780030477. The next prime is 52780030559. The reversal of 52780030530 is 3503008725.

52780030530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 52780030491 and 52780030500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1318551 + ... + 1357989.

It is an arithmetic number, because the mean of its divisors is an integer number (2044569600).

Almost surely, 2^52780030530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52780030530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65426227200).

52780030530 is an abundant number, since it is smaller than the sum of its proper divisors (78072423870).

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

52780030530 is a wasteful number, since it uses less digits than its factorization.

52780030530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40919.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 52780030530 in words is "fifty-two billion, seven hundred eighty million, thirty thousand, five hundred thirty".