38215025 has 6 divisors (see below), whose sum is σ = 47386662. Its totient is φ = 30572000.

The previous prime is 38215019. The next prime is 38215027. The reversal of 38215025 is 52051283.

38215025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1721344 + 36493681 = 1312^2 + 6041^2 .

It is not a de Polignac number, because 38215025 - 2¹⁸ = 37952881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38214985 and 38215003.

It is not an unprimeable number, because it can be changed into a prime (38215027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764276 + ... + 764325.

It is an arithmetic number, because the mean of its divisors is an integer number (7897777).

Almost surely, 2^38215025 is an apocalyptic number.

It is an amenable number.

38215025 is a deficient number, since it is larger than the sum of its proper divisors (9171637).

38215025 is a wasteful number, since it uses less digits than its factorization.

38215025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528611 (or 1528606 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 38215025 is about 6181.8302306032. The cubic root of 38215025 is about 336.8304788318.

The spelling of 38215025 in words is "thirty-eight million, two hundred fifteen thousand, twenty-five".