613256530 has 16 divisors (see below), whose sum is σ = 1110636864. Its totient is φ = 243797040.

The previous prime is 613256491. The next prime is 613256543. The reversal of 613256530 is 35652316.

It is a junction number, because it is equal to n+sod(n) for n = 613256492 and 613256501.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 186486 + ... + 189745.

It is an arithmetic number, because the mean of its divisors is an integer number (69414804).

Almost surely, 2^613256530 is an apocalyptic number.

613256530 is a deficient number, since it is larger than the sum of its proper divisors (497380334).

613256530 is a wasteful number, since it uses less digits than its factorization.

613256530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376401.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 613256530 is about 24764.0168389541. The cubic root of 613256530 is about 849.5991327766.

The spelling of 613256530 in words is "six hundred thirteen million, two hundred fifty-six thousand, five hundred thirty".