513507707 has 2 divisors, whose sum is σ = 513507708. Its totient is φ = 513507706.

The previous prime is 513507703. The next prime is 513507751. The reversal of 513507707 is 707705315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513507707 - 2² = 513507703 is a prime.

It is not a weakly prime, because it can be changed into another prime (513507703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256753853 + 256753854.

It is an arithmetic number, because the mean of its divisors is an integer number (256753854).

Almost surely, 2^513507707 is an apocalyptic number.

513507707 is a deficient number, since it is larger than the sum of its proper divisors (1).

513507707 is an equidigital number, since it uses as much as digits as its factorization.

513507707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 513507707 is about 22660.7084399407. The cubic root of 513507707 is about 800.7844945215.

The spelling of 513507707 in words is "five hundred thirteen million, five hundred seven thousand, seven hundred seven".