513425450 has 12 divisors (see below), whose sum is σ = 954971430. Its totient is φ = 205370160.

The previous prime is 513425413. The next prime is 513425459. The reversal of 513425450 is 54524315.

It can be written as a sum of positive squares in 3 ways, for example, as 309021241 + 204404209 = 17579^2 + 14297^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (513425459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5134205 + ... + 5134304.

Almost surely, 2^513425450 is an apocalyptic number.

513425450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513425450 is a deficient number, since it is larger than the sum of its proper divisors (441545980).

513425450 is a wasteful number, since it uses less digits than its factorization.

513425450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10268521 (or 10268516 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 513425450 is about 22658.8933975161. The cubic root of 513425450 is about 800.7417339509.

Adding to 513425450 its reverse (54524315), we get a palindrome (567949765).

The spelling of 513425450 in words is "five hundred thirteen million, four hundred twenty-five thousand, four hundred fifty".