613423625 has 16 divisors (see below), whose sum is σ = 778112400. Its totient is φ = 482688000.

The previous prime is 613423609. The next prime is 613423633. The reversal of 613423625 is 526324316.

It can be written as a sum of positive squares in 8 ways, for example, as 406869241 + 206554384 = 20171^2 + 14372^2 .

It is not a de Polignac number, because 613423625 - 2⁴ = 613423609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613423591 and 613423600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32600 + ... + 47849.

It is an arithmetic number, because the mean of its divisors is an integer number (48632025).

Almost surely, 2^613423625 is an apocalyptic number.

It is an amenable number.

613423625 is a deficient number, since it is larger than the sum of its proper divisors (164688775).

613423625 is an equidigital number, since it uses as much as digits as its factorization.

613423625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80525 (or 80515 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 613423625 is about 24767.3903550616. The cubic root of 613423625 is about 849.6762896533.

The spelling of 613423625 in words is "six hundred thirteen million, four hundred twenty-three thousand, six hundred twenty-five".