613035520 has 80 divisors (see below), whose sum is σ = 1504301040. Its totient is φ = 239468544.

The previous prime is 613035473. The next prime is 613035541. The reversal of 613035520 is 25530316.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107296 + ... + 112864.

It is an arithmetic number, because the mean of its divisors is an integer number (18803763).

Almost surely, 2^613035520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 613035520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752150520).

613035520 is an abundant number, since it is smaller than the sum of its proper divisors (891265520).

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

613035520 is an equidigital number, since it uses as much as digits as its factorization.

613035520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5635 (or 5619 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 613035520 is about 24759.5541155329. The cubic root of 613035520 is about 849.4970588721.

Adding to 613035520 its reverse (25530316), we get a palindrome (638565836).

The spelling of 613035520 in words is "six hundred thirteen million, thirty-five thousand, five hundred twenty".