78580025 has 12 divisors (see below), whose sum is σ = 97650000. Its totient is φ = 62728080.

The previous prime is 78580003. The next prime is 78580097. The reversal of 78580025 is 52008587.

It is not a de Polignac number, because 78580025 - 2⁶ = 78579961 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 9326 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (8137500).

Almost surely, 2^78580025 is an apocalyptic number.

It is an amenable number.

78580025 is a deficient number, since it is larger than the sum of its proper divisors (19069975).

78580025 is a wasteful number, since it uses less digits than its factorization.

78580025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808 (or 6803 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 78580025 is about 8864.5374949853. The cubic root of 78580025 is about 428.3223344825.

The spelling of 78580025 in words is "seventy-eight million, five hundred eighty thousand, twenty-five".