7880025 has 24 divisors (see below), whose sum is σ = 13481280. Its totient is φ = 4056640.

The previous prime is 7880021. The next prime is 7880063. The reversal of 7880025 is 5200887.

It is not a de Polignac number, because 7880025 - 2² = 7880021 is a prime.

It is a Curzon number.

7880025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7879974 and 7880001.

It is not an unprimeable number, because it can be changed into a prime (7880021) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 364 + ... + 3986.

It is an arithmetic number, because the mean of its divisors is an integer number (561720).

Almost surely, 2^7880025 is an apocalyptic number.

7880025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7880025 is a deficient number, since it is larger than the sum of its proper divisors (5601255).

7880025 is a wasteful number, since it uses less digits than its factorization.

7880025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665 (or 3660 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 7880025 is about 2807.1382224607. The cubic root of 7880025 is about 198.9951683549.

The spelling of 7880025 in words is "seven million, eight hundred eighty thousand, twenty-five".