3909682525 has 24 divisors (see below), whose sum is σ = 5866499520. Its totient is φ = 2523221760.

The previous prime is 3909682501. The next prime is 3909682529. The reversal of 3909682525 is 5252869093.

It is a happy number.

It is not a de Polignac number, because 3909682525 - 2⁵ = 3909682493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3909682529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654115 + ... + 660064.

It is an arithmetic number, because the mean of its divisors is an integer number (244437480).

Almost surely, 2^3909682525 is an apocalyptic number.

3909682525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3909682525 is a deficient number, since it is larger than the sum of its proper divisors (1956816995).

3909682525 is a wasteful number, since it uses less digits than its factorization.

3909682525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314213 (or 1314208 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 3909682525 is about 62527.4541701483. The cubic root of 3909682525 is about 1575.3624797685.

The spelling of 3909682525 in words is "three billion, nine hundred nine million, six hundred eighty-two thousand, five hundred twenty-five".