513565250 has 64 divisors (see below), whose sum is σ = 1104105600. Its totient is φ = 176904000.

The previous prime is 513565249. The next prime is 513565253. The reversal of 513565250 is 52565315.

It is not an unprimeable number, because it can be changed into a prime (513565253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47336 + ... + 57164.

It is an arithmetic number, because the mean of its divisors is an integer number (17251650).

Almost surely, 2^513565250 is an apocalyptic number.

513565250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

513565250 is an abundant number, since it is smaller than the sum of its proper divisors (590540350).

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

513565250 is a wasteful number, since it uses less digits than its factorization.

513565250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876 (or 9866 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 513565250 is about 22661.9780690036. The cubic root of 513565250 is about 800.8144050242.

The spelling of 513565250 in words is "five hundred thirteen million, five hundred sixty-five thousand, two hundred fifty".