513453530 has 32 divisors (see below), whose sum is σ = 986212800. Its totient is φ = 191901312.

The previous prime is 513453503. The next prime is 513453539. The reversal of 513453530 is 35354315.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 513453493 and 513453502.

It is not an unprimeable number, because it can be changed into a prime (513453539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4640 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (30819150).

Almost surely, 2^513453530 is an apocalyptic number.

513453530 is a deficient number, since it is larger than the sum of its proper divisors (472759270).

513453530 is a wasteful number, since it uses less digits than its factorization.

513453530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37118.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 513453530 is about 22659.5130133019. The cubic root of 513453530 is about 800.7563316028.

The spelling of 513453530 in words is "five hundred thirteen million, four hundred fifty-three thousand, five hundred thirty".