511110225 has 36 divisors (see below), whose sum is σ = 916746012. Its totient is φ = 272208000.

The previous prime is 511110211. The next prime is 511110227. The reversal of 511110225 is 522011115.

It can be written as a sum of positive squares in 6 ways, for example, as 25040016 + 486070209 = 5004^2 + 22047^2 .

It is not a de Polignac number, because 511110225 - 2⁶ = 511110161 is a prime.

It is a super-2 number, since 2×511110225² = 522467324199101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511110198 and 511110207.

It is not an unprimeable number, because it can be changed into a prime (511110227) 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 35 ways as a sum of consecutive naturals, for example, 237655 + ... + 239795.

It is an arithmetic number, because the mean of its divisors is an integer number (25465167).

Almost surely, 2^511110225 is an apocalyptic number.

It is an amenable number.

511110225 is a deficient number, since it is larger than the sum of its proper divisors (405635787).

511110225 is a wasteful number, since it uses less digits than its factorization.

511110225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 511110225 is about 22607.7470129157. The cubic root of 511110225 is about 799.5363068085.

The spelling of 511110225 in words is "five hundred eleven million, one hundred ten thousand, two hundred twenty-five".