10778825 has 6 divisors (see below), whose sum is σ = 13365774. Its totient is φ = 8623040.

The previous prime is 10778819. The next prime is 10778849. The reversal of 10778825 is 52887701.

It can be written as a sum of positive squares in 3 ways, for example, as 2229049 + 8549776 = 1493^2 + 2924^2 .

It is not a de Polignac number, because 10778825 - 2⁸ = 10778569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215552 + ... + 215601.

It is an arithmetic number, because the mean of its divisors is an integer number (2227629).

Almost surely, 2^10778825 is an apocalyptic number.

It is an amenable number.

10778825 is a deficient number, since it is larger than the sum of its proper divisors (2586949).

10778825 is an equidigital number, since it uses as much as digits as its factorization.

10778825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431163 (or 431158 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 10778825 is about 3283.1120906847. The cubic root of 10778825 is about 220.8973336118.

The spelling of 10778825 in words is "ten million, seven hundred seventy-eight thousand, eight hundred twenty-five".