10018825 has 6 divisors (see below), whose sum is σ = 12423374. Its totient is φ = 8015040.

The previous prime is 10018793. The next prime is 10018837. The reversal of 10018825 is 52881001.

It can be written as a sum of positive squares in 3 ways, for example, as 3485689 + 6533136 = 1867^2 + 2556^2 .

It is not a de Polignac number, because 10018825 - 2⁵ = 10018793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 400753 = 10018825 / (1 + 0 + 0 + 1 + 8 + 8 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10018825.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200352 + ... + 200401.

Almost surely, 2^10018825 is an apocalyptic number.

It is an amenable number.

10018825 is a deficient number, since it is larger than the sum of its proper divisors (2404549).

10018825 is an equidigital number, since it uses as much as digits as its factorization.

10018825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400763 (or 400758 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 10018825 is about 3165.2527545206. The cubic root of 10018825 is about 215.5785750364.

Adding to 10018825 its reverse (52881001), we get a palindrome (62899826).

The spelling of 10018825 in words is "ten million, eighteen thousand, eight hundred twenty-five".