780500052 has 72 divisors (see below), whose sum is σ = 2073527456. Its totient is φ = 247230144.

The previous prime is 780500041. The next prime is 780500087. The reversal of 780500052 is 250005087.

It is a happy number.

780500052 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 = 780499989 and 780500025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50463 + ... + 64089.

Almost surely, 2^780500052 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 780500052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1036763728).

780500052 is an abundant number, since it is smaller than the sum of its proper divisors (1293027404).

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

780500052 is a wasteful number, since it uses less digits than its factorization.

780500052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13717 (or 13712 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 780500052 is about 27937.4310200491. The cubic root of 780500052 is about 920.7130782259.

The spelling of 780500052 in words is "seven hundred eighty million, five hundred thousand, fifty-two".