613625 has 8 divisors (see below), whose sum is σ = 765960. Its totient is φ = 490800.

The previous prime is 613609. The next prime is 613633. The reversal of 613625 is 526316.

It can be written as a sum of positive squares in 4 ways, for example, as 11449 + 602176 = 107^2 + 776^2 .

It is not a de Polignac number, because 613625 - 2⁴ = 613609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 613625.

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, 2330 + ... + 2579.

It is an arithmetic number, because the mean of its divisors is an integer number (95745).

2⁶¹³⁶²⁵ is an apocalyptic number.

It is an amenable number.

613625 is a deficient number, since it is larger than the sum of its proper divisors (152335).

613625 is an equidigital number, since it uses as much as digits as its factorization.

613625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924 (or 4914 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 613625 is about 783.3421985314. The cubic root of 613625 is about 84.9769256860.

It can be divided in two parts, 6 and 13625, that added together give a palindrome (13631).

The spelling of 613625 in words is "six hundred thirteen thousand, six hundred twenty-five".