513634025 has 12 divisors (see below), whose sum is σ = 638990352. Its totient is φ = 409562640.

The previous prime is 513634021. The next prime is 513634057. The reversal of 513634025 is 520436315.

It is not a de Polignac number, because 513634025 - 2² = 513634021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (513634021) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25787 + ... + 41136.

It is an arithmetic number, because the mean of its divisors is an integer number (53249196).

Almost surely, 2^513634025 is an apocalyptic number.

It is an amenable number.

513634025 is a deficient number, since it is larger than the sum of its proper divisors (125356327).

513634025 is a wasteful number, since it uses less digits than its factorization.

513634025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67240 (or 67235 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 513634025 is about 22663.4954276696. The cubic root of 513634025 is about 800.8501509217.

The spelling of 513634025 in words is "five hundred thirteen million, six hundred thirty-four thousand, twenty-five".