33399505 has 4 divisors (see below), whose sum is σ = 40079412. Its totient is φ = 26719600.

The previous prime is 33399497. The next prime is 33399517. The reversal of 33399505 is 50599333.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50599333 = 23 ⋅2199971.

It can be written as a sum of positive squares in 2 ways, for example, as 10445824 + 22953681 = 3232^2 + 4791^2 .

It is not a de Polignac number, because 33399505 - 2³ = 33399497 is a prime.

It is a super-2 number, since 2×33399505² = 2231053868490050, which contains 22 as substring.

It is a Duffinian 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, 3339946 + ... + 3339955.

It is an arithmetic number, because the mean of its divisors is an integer number (10019853).

Almost surely, 2^33399505 is an apocalyptic number.

It is an amenable number.

33399505 is a deficient number, since it is larger than the sum of its proper divisors (6679907).

33399505 is an equidigital number, since it uses as much as digits as its factorization.

33399505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679906.

The product of its (nonzero) digits is 54675, while the sum is 37.

The square root of 33399505 is about 5779.2304851079. The cubic root of 33399505 is about 322.0426142436.

The spelling of 33399505 in words is "thirty-three million, three hundred ninety-nine thousand, five hundred five".