513204725 has 24 divisors (see below), whose sum is σ = 730771680. Its totient is φ = 353592000.

The previous prime is 513204691. The next prime is 513204739. The reversal of 513204725 is 527402315.

It is a happy number.

It is not a de Polignac number, because 513204725 - 2⁸ = 513204469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43886 + ... + 54335.

It is an arithmetic number, because the mean of its divisors is an integer number (30448820).

Almost surely, 2^513204725 is an apocalyptic number.

513204725 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

513204725 is a deficient number, since it is larger than the sum of its proper divisors (217566955).

513204725 is a wasteful number, since it uses less digits than its factorization.

513204725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98261 (or 98256 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 513204725 is about 22654.0222697869. The cubic root of 513204725 is about 800.6269694458.

The spelling of 513204725 in words is "five hundred thirteen million, two hundred four thousand, seven hundred twenty-five".