513425340 has 72 divisors (see below), whose sum is σ = 1565403840. Its totient is φ = 136209024.

The previous prime is 513425299. The next prime is 513425359. The reversal of 513425340 is 43524315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28221 + ... + 42699.

It is an arithmetic number, because the mean of its divisors is an integer number (21741720).

Almost surely, 2^513425340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513425340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (782701920).

513425340 is an abundant number, since it is smaller than the sum of its proper divisors (1051978500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513425340 is a wasteful number, since it uses less digits than its factorization.

513425340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14691 (or 14686 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 513425340 is about 22658.8909702130. The cubic root of 513425340 is about 800.7416767653.

Adding to 513425340 its reverse (43524315), we get a palindrome (556949655).

The spelling of 513425340 in words is "five hundred thirteen million, four hundred twenty-five thousand, three hundred forty".