780532825 has 24 divisors (see below), whose sum is σ = 1053950400. Its totient is φ = 571152960.

The previous prime is 780532801. The next prime is 780532829. The reversal of 780532825 is 528235087.

It is a de Polignac number, because none of the positive numbers 2^k-780532825 is a prime.

It is not an unprimeable number, because it can be changed into a prime (780532829) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14557 + ... + 42106.

It is an arithmetic number, because the mean of its divisors is an integer number (43914600).

Almost surely, 2^780532825 is an apocalyptic number.

It is an amenable number.

780532825 is a deficient number, since it is larger than the sum of its proper divisors (273417575).

780532825 is a wasteful number, since it uses less digits than its factorization.

780532825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56721 (or 56716 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 780532825 is about 27938.0175567272. The cubic root of 780532825 is about 920.7259648820.

The spelling of 780532825 in words is "seven hundred eighty million, five hundred thirty-two thousand, eight hundred twenty-five".