5661725 has 12 divisors (see below), whose sum is σ = 7154676. Its totient is φ = 4442880.

The previous prime is 5661713. The next prime is 5661727. The reversal of 5661725 is 5271665.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 120409 + 5541316 = 347^2 + 2354^2 .

It is not a de Polignac number, because 5661725 - 2¹² = 5657629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5661691 and 5661700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 812 + ... + 3461.

It is an arithmetic number, because the mean of its divisors is an integer number (596223).

Almost surely, 2^5661725 is an apocalyptic number.

It is an amenable number.

5661725 is a deficient number, since it is larger than the sum of its proper divisors (1492951).

5661725 is a wasteful number, since it uses less digits than its factorization.

5661725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336 (or 4331 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 5661725 is about 2379.4379588466. The cubic root of 5661725 is about 178.2308686332.

The spelling of 5661725 in words is "five million, six hundred sixty-one thousand, seven hundred twenty-five".