513142625 has 16 divisors (see below), whose sum is σ = 641551872. Its totient is φ = 409777200.

The previous prime is 513142621. The next prime is 513142639. The reversal of 513142625 is 526241315.

It is not a de Polignac number, because 513142625 - 2² = 513142621 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 (513142621) 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, 72494 + ... + 79256.

It is an arithmetic number, because the mean of its divisors is an integer number (40096992).

Almost surely, 2^513142625 is an apocalyptic number.

It is an amenable number.

513142625 is a deficient number, since it is larger than the sum of its proper divisors (128409247).

513142625 is an equidigital number, since it uses as much as digits as its factorization.

513142625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7375 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 513142625 is about 22652.6516107938. The cubic root of 513142625 is about 800.5946750300.

The spelling of 513142625 in words is "five hundred thirteen million, one hundred forty-two thousand, six hundred twenty-five".