513225572 has 6 divisors (see below), whose sum is σ = 898144758. Its totient is φ = 256612784.

The previous prime is 513225527. The next prime is 513225593. The reversal of 513225572 is 275522315.

It can be written as a sum of positive squares in only one way, i.e., 442934116 + 70291456 = 21046^2 + 8384^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64153193 + ... + 64153200.

It is an arithmetic number, because the mean of its divisors is an integer number (149690793).

Almost surely, 2^513225572 is an apocalyptic number.

It is an amenable number.

513225572 is a deficient number, since it is larger than the sum of its proper divisors (384919186).

513225572 is a wasteful number, since it uses less digits than its factorization.

513225572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128306397 (or 128306395 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 513225572 is about 22654.4823820806. The cubic root of 513225572 is about 800.6378101127.

Adding to 513225572 its reverse (275522315), we get a palindrome (788747887).

The spelling of 513225572 in words is "five hundred thirteen million, two hundred twenty-five thousand, five hundred seventy-two".