616725 has 18 divisors (see below), whose sum is σ = 1105026. Its totient is φ = 328800.

The previous prime is 616723. The next prime is 616729. The reversal of 616725 is 527616.

It can be written as a sum of positive squares in 3 ways, for example, as 12996 + 603729 = 114^2 + 777^2 .

It is not a de Polignac number, because 616725 - 2¹ = 616723 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 616725.

It is not an unprimeable number, because it can be changed into a prime (616723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1146 + ... + 1595.

2⁶¹⁶⁷²⁵ is an apocalyptic number.

It is an amenable number.

616725 is a deficient number, since it is larger than the sum of its proper divisors (488301).

616725 is a wasteful number, since it uses less digits than its factorization.

616725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2749 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 616725 is about 785.3184067625. The cubic root of 616725 is about 85.1197849794.

It can be divided in two parts, 61 and 6725, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 616725 in words is "six hundred sixteen thousand, seven hundred twenty-five".