38502505 has 4 divisors (see below), whose sum is σ = 46203012. Its totient is φ = 30802000.

The previous prime is 38502491. The next prime is 38502509. The reversal of 38502505 is 50520583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7354944 + 31147561 = 2712^2 + 5581^2 .

It is not a de Polignac number, because 38502505 - 2⁵ = 38502473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38502509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850246 + ... + 3850255.

It is an arithmetic number, because the mean of its divisors is an integer number (11550753).

Almost surely, 2^38502505 is an apocalyptic number.

It is an amenable number.

38502505 is a deficient number, since it is larger than the sum of its proper divisors (7700507).

38502505 is an equidigital number, since it uses as much as digits as its factorization.

38502505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700506.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 38502505 is about 6205.0386783645. The cubic root of 38502505 is about 337.6729940742.

The spelling of 38502505 in words is "thirty-eight million, five hundred two thousand, five hundred five".