38505725 has 6 divisors (see below), whose sum is σ = 47747130. Its totient is φ = 30804560.

The previous prime is 38505713. The next prime is 38505739. The reversal of 38505725 is 52750583.

It can be written as a sum of positive squares in 3 ways, for example, as 1951609 + 36554116 = 1397^2 + 6046^2 .

It is not a de Polignac number, because 38505725 - 2⁶ = 38505661 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 770090 + ... + 770139.

It is an arithmetic number, because the mean of its divisors is an integer number (7957855).

Almost surely, 2^38505725 is an apocalyptic number.

It is an amenable number.

38505725 is a deficient number, since it is larger than the sum of its proper divisors (9241405).

38505725 is a wasteful number, since it uses less digits than its factorization.

38505725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540239 (or 1540234 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 38505725 is about 6205.2981394934. The cubic root of 38505725 is about 337.6824071131.

The spelling of 38505725 in words is "thirty-eight million, five hundred five thousand, seven hundred twenty-five".