511123325 has 6 divisors (see below), whose sum is σ = 633792954. Its totient is φ = 408898640.

The previous prime is 511123307. The next prime is 511123339. The reversal of 511123325 is 523321115.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 101384761 + 409738564 = 10069^2 + 20242^2 .

It is a de Polignac number, because none of the positive numbers 2^k-511123325 is a prime.

It is a super-2 number, since 2×511123325² = 522494106718111250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 511123325.

It is a congruent number.

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, 10222442 + ... + 10222491.

It is an arithmetic number, because the mean of its divisors is an integer number (105632159).

Almost surely, 2^511123325 is an apocalyptic number.

It is an amenable number.

511123325 is a deficient number, since it is larger than the sum of its proper divisors (122669629).

511123325 is a wasteful number, since it uses less digits than its factorization.

511123325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20444943 (or 20444938 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 511123325 is about 22608.0367347543. The cubic root of 511123325 is about 799.5431375831.

The spelling of 511123325 in words is "five hundred eleven million, one hundred twenty-three thousand, three hundred twenty-five".