5665419 has 6 divisors (see below), whose sum is σ = 8183396. Its totient is φ = 3776940.

The previous prime is 5665417. The next prime is 5665433. The reversal of 5665419 is 9145665.

It is not a de Polignac number, because 5665419 - 2¹ = 5665417 is a prime.

It is a super-2 number, since 2×5665419² = 64193944891122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5665417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314737 + ... + 314754.

Almost surely, 2^5665419 is an apocalyptic number.

5665419 is a deficient number, since it is larger than the sum of its proper divisors (2517977).

5665419 is a wasteful number, since it uses less digits than its factorization.

5665419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629497 (or 629494 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 5665419 is about 2380.2140660033. The cubic root of 5665419 is about 178.2696225284.

It can be divided in two parts, 5665 and 419, that added together give a square (6084 = 78²).

The spelling of 5665419 in words is "five million, six hundred sixty-five thousand, four hundred nineteen".