39855125 has 8 divisors (see below), whose sum is σ = 49739352. Its totient is φ = 31884000.

The previous prime is 39855083. The next prime is 39855131. The reversal of 39855125 is 52155893.

It can be written as a sum of positive squares in 4 ways, for example, as 1156 + 39853969 = 34^2 + 6313^2 .

It is not a de Polignac number, because 39855125 - 2⁶ = 39855061 is a prime.

It is a super-3 number, since 3×39855125³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159296 + ... + 159545.

It is an arithmetic number, because the mean of its divisors is an integer number (6217419).

Almost surely, 2^39855125 is an apocalyptic number.

It is an amenable number.

39855125 is a deficient number, since it is larger than the sum of its proper divisors (9884227).

39855125 is an equidigital number, since it uses as much as digits as its factorization.

39855125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318856 (or 318846 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The square root of 39855125 is about 6313.0915564405. The cubic root of 39855125 is about 341.5818019116.

The spelling of 39855125 in words is "thirty-nine million, eight hundred fifty-five thousand, one hundred twenty-five".