513505424 has 10 divisors (see below), whose sum is σ = 994916790. Its totient is φ = 256752704.

The previous prime is 513505387. The next prime is 513505463. The reversal of 513505424 is 424505315.

It can be written as a sum of positive squares in only one way, i.e., 356454400 + 157051024 = 18880^2 + 12532^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16047029 + ... + 16047060.

It is an arithmetic number, because the mean of its divisors is an integer number (99491679).

Almost surely, 2^513505424 is an apocalyptic number.

It is an amenable number.

513505424 is a deficient number, since it is larger than the sum of its proper divisors (481411366).

513505424 is a wasteful number, since it uses less digits than its factorization.

513505424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094097 (or 32094091 counting only the distinct ones).

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

The square root of 513505424 is about 22660.6580663493. The cubic root of 513505424 is about 800.7833077858.

The spelling of 513505424 in words is "five hundred thirteen million, five hundred five thousand, four hundred twenty-four".