32113505 has 4 divisors (see below), whose sum is σ = 38536212. Its totient is φ = 25690800.

The previous prime is 32113481. The next prime is 32113517. The reversal of 32113505 is 50531123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50531123 = 17 ⋅2972419.

It can be written as a sum of positive squares in 2 ways, for example, as 23493409 + 8620096 = 4847^2 + 2936^2 .

It is a de Polignac number, because none of the positive numbers 2^k-32113505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3211346 + ... + 3211355.

It is an arithmetic number, because the mean of its divisors is an integer number (9634053).

Almost surely, 2^32113505 is an apocalyptic number.

It is an amenable number.

32113505 is a deficient number, since it is larger than the sum of its proper divisors (6422707).

32113505 is an equidigital number, since it uses as much as digits as its factorization.

32113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422706.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 32113505 is about 5666.8778882203. The cubic root of 32113505 is about 317.8551381914.

Adding to 32113505 its reverse (50531123), we get a palindrome (82644628).

The spelling of 32113505 in words is "thirty-two million, one hundred thirteen thousand, five hundred five".