38605505 has 4 divisors (see below), whose sum is σ = 46326612. Its totient is φ = 30884400.

The previous prime is 38605459. The next prime is 38605513. The reversal of 38605505 is 50550683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50550683 = 29 ⋅1743127.

It can be written as a sum of positive squares in 2 ways, for example, as 15295921 + 23309584 = 3911^2 + 4828^2 .

It is not a de Polignac number, because 38605505 - 2²⁰ = 37556929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3860546 + ... + 3860555.

It is an arithmetic number, because the mean of its divisors is an integer number (11581653).

Almost surely, 2^38605505 is an apocalyptic number.

It is an amenable number.

38605505 is a deficient number, since it is larger than the sum of its proper divisors (7721107).

38605505 is an equidigital number, since it uses as much as digits as its factorization.

38605505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721106.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 38605505 is about 6213.3328415594. The cubic root of 38605505 is about 337.9738346749.

The spelling of 38605505 in words is "thirty-eight million, six hundred five thousand, five hundred five".