513425 has 12 divisors (see below), whose sum is σ = 694896.
Its totient is φ = 373200.
The previous prime is 513419. The next prime is 513427. The reversal of 513425 is 524315.
It is not a de Polignac number, because 513425 - 28 = 513169 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 513397 and 513406.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 513425.
It is not an unprimeable number, because it can be changed into a prime (513427) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 659 + ... + 1208.
It is an arithmetic number, because the mean of its divisors is an integer number (57908).
2513425 is an apocalyptic number.
513425 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
It is an amenable number.
513425 is a deficient number, since it is larger than the sum of its proper divisors (181471).
513425 is a wasteful number, since it uses less digits than its factorization.
513425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1888 (or 1883 counting only the distinct ones).
The product of its digits is 600, while the sum is 20.
The square root of 513425 is about 716.5368099407.
The cubic root of 513425 is about 80.0741500010.
The spelling of 513425 in words is "five hundred thirteen thousand, four hundred twenty-five".