513422225 has 6 divisors (see below), whose sum is σ = 636643590. Its totient is φ = 410737760.

The previous prime is 513422209. The next prime is 513422233. The reversal of 513422225 is 522224315.

It can be written as a sum of positive squares in 3 ways, for example, as 114661264 + 398760961 = 10708^2 + 19969^2 .

It is not a de Polignac number, because 513422225 - 2⁴ = 513422209 is a prime.

It is a super-2 number, since 2×513422225² = 527204762247901250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513422194 and 513422203.

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, 10268420 + ... + 10268469.

It is an arithmetic number, because the mean of its divisors is an integer number (106107265).

Almost surely, 2^513422225 is an apocalyptic number.

It is an amenable number.

513422225 is a deficient number, since it is larger than the sum of its proper divisors (123221365).

513422225 is a wasteful number, since it uses less digits than its factorization.

513422225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20536899 (or 20536894 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 513422225 is about 22658.8222332936. The cubic root of 513422225 is about 800.7400573703.

The spelling of 513422225 in words is "five hundred thirteen million, four hundred twenty-two thousand, two hundred twenty-five".