613448325 has 72 divisors (see below), whose sum is σ = 1265329728. Its totient is φ = 278288640.

The previous prime is 613448323. The next prime is 613448333. The reversal of 613448325 is 523844316.

613448325 is a `hidden beast` number, since 613 + 4 + 4 + 8 + 32 + 5 = 666.

It is not a de Polignac number, because 613448325 - 2¹ = 613448323 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 613448325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613448323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 214354 + ... + 217196.

It is an arithmetic number, because the mean of its divisors is an integer number (17574024).

Almost surely, 2^613448325 is an apocalyptic number.

It is an amenable number.

613448325 is an abundant number, since it is smaller than the sum of its proper divisors (651881403).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613448325 is a wasteful number, since it uses less digits than its factorization.

613448325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003 (or 2995 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 613448325 is about 24767.8889895768. Note that the first 3 decimals coincide. The cubic root of 613448325 is about 849.6876938020.

The spelling of 613448325 in words is "six hundred thirteen million, four hundred forty-eight thousand, three hundred twenty-five".