3825840725 has 24 divisors (see below), whose sum is σ = 5426319360. Its totient is φ = 2621229120.

The previous prime is 3825840719. The next prime is 3825840731. The reversal of 3825840725 is 5270485283.

It is an interprime number because it is at equal distance from previous prime (3825840719) and next prime (3825840731).

It is not a de Polignac number, because 3825840725 - 2¹⁴ = 3825824341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215279 + ... + 232371.

It is an arithmetic number, because the mean of its divisors is an integer number (226096640).

Almost surely, 2^3825840725 is an apocalyptic number.

3825840725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3825840725 is a deficient number, since it is larger than the sum of its proper divisors (1600478635).

3825840725 is a wasteful number, since it uses less digits than its factorization.

3825840725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18389 (or 18384 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 3825840725 is about 61853.3808696016. The cubic root of 3825840725 is about 1564.0199745674.

The spelling of 3825840725 in words is "three billion, eight hundred twenty-five million, eight hundred forty thousand, seven hundred twenty-five".