5425666 has 8 divisors (see below), whose sum is σ = 8151804. Its totient is φ = 2708400.

The previous prime is 5425661. The next prime is 5425709. The reversal of 5425666 is 6665245.

It can be written as a sum of positive squares in 2 ways, for example, as 5040025 + 385641 = 2245^2 + 621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a d-powerful number, because it can be written as 5 + 4¹⁰ + 2²¹ + 5⁹ + 6³ + 6⁶ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (5425661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385 + ... + 3316.

Almost surely, 2^5425666 is an apocalyptic number.

5425666 is a deficient number, since it is larger than the sum of its proper divisors (2726138).

5425666 is a wasteful number, since it uses less digits than its factorization.

5425666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4436.

The product of its digits is 43200, while the sum is 34.

The square root of 5425666 is about 2329.3059052001. The cubic root of 5425666 is about 175.7185800423.

The spelling of 5425666 in words is "five million, four hundred twenty-five thousand, six hundred sixty-six".