36390505 has 8 divisors (see below), whose sum is σ = 45174600. Its totient is φ = 28108416.

The previous prime is 36390503. The next prime is 36390539. The reversal of 36390505 is 50509363.

It can be written as a sum of positive squares in 4 ways, for example, as 534361 + 35856144 = 731^2 + 5988^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36390505 - 2¹ = 36390503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36390503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125340 + ... + 125629.

It is an arithmetic number, because the mean of its divisors is an integer number (5646825).

Almost surely, 2^36390505 is an apocalyptic number.

It is an amenable number.

36390505 is a deficient number, since it is larger than the sum of its proper divisors (8784095).

36390505 is a wasteful number, since it uses less digits than its factorization.

36390505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251003.

The product of its (nonzero) digits is 12150, while the sum is 31.

The square root of 36390505 is about 6032.4543098145. The cubic root of 36390505 is about 331.3823403803.

Adding to 36390505 its reverse (50509363), we get a palindrome (86899868).

The spelling of 36390505 in words is "thirty-six million, three hundred ninety thousand, five hundred five".