38131625 has 16 divisors (see below), whose sum is σ = 54387840. Its totient is φ = 26146800.

The previous prime is 38131619. The next prime is 38131627. The reversal of 38131625 is 52613183.

It is not a de Polignac number, because 38131625 - 2⁴ = 38131609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38131627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20915 + ... + 22664.

It is an arithmetic number, because the mean of its divisors is an integer number (3399240).

Almost surely, 2^38131625 is an apocalyptic number.

38131625 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38131625 is a deficient number, since it is larger than the sum of its proper divisors (16256215).

38131625 is an equidigital number, since it uses as much as digits as its factorization.

38131625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43601 (or 43591 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 38131625 is about 6175.0809711290. The cubic root of 38131625 is about 336.5852688009.

The spelling of 38131625 in words is "thirty-eight million, one hundred thirty-one thousand, six hundred twenty-five".