531155325 has 12 divisors (see below), whose sum is σ = 878176928. Its totient is φ = 283282800.

The previous prime is 531155309. The next prime is 531155341. The reversal of 531155325 is 523551135.

It is an interprime number because it is at equal distance from previous prime (531155309) and next prime (531155341).

It is not a de Polignac number, because 531155325 - 2⁴ = 531155309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 531155292 and 531155301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3540961 + ... + 3541110.

Almost surely, 2^531155325 is an apocalyptic number.

It is an amenable number.

531155325 is a deficient number, since it is larger than the sum of its proper divisors (347021603).

531155325 is a wasteful number, since it uses less digits than its factorization.

531155325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7082084 (or 7082079 counting only the distinct ones).

The product of its digits is 11250, while the sum is 30.

The square root of 531155325 is about 23046.8072626123. The cubic root of 531155325 is about 809.8548360497.

The spelling of 531155325 in words is "five hundred thirty-one million, one hundred fifty-five thousand, three hundred twenty-five".