3665424125 has 16 divisors (see below), whose sum is σ = 4990310208. Its totient is φ = 2665762000.

The previous prime is 3665424107. The next prime is 3665424143. The reversal of 3665424125 is 5214245663.

It is an interprime number because it is at equal distance from previous prime (3665424107) and next prime (3665424143).

It is not a de Polignac number, because 3665424125 - 2¹⁰ = 3665423101 is a prime.

It is a super-2 number, since 2×3665424125² = 26870668032264031250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331507 + ... + 1334256.

It is an arithmetic number, because the mean of its divisors is an integer number (311894388).

Almost surely, 2^3665424125 is an apocalyptic number.

It is an amenable number.

3665424125 is a deficient number, since it is larger than the sum of its proper divisors (1324886083).

3665424125 is a wasteful number, since it uses less digits than its factorization.

3665424125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665789 (or 2665779 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

The square root of 3665424125 is about 60542.7462624549. The cubic root of 3665424125 is about 1541.8474658505.

Adding to 3665424125 its reverse (5214245663), we get a palindrome (8879669788).

The spelling of 3665424125 in words is "three billion, six hundred sixty-five million, four hundred twenty-four thousand, one hundred twenty-five".