33668253 has 12 divisors (see below), whose sum is σ = 48789468. Its totient is φ = 22372800.

The previous prime is 33668233. The next prime is 33668281. The reversal of 33668253 is 35286633.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8538084 + 25130169 = 2922^2 + 5013^2 .

It is not a de Polignac number, because 33668253 - 2⁹ = 33667741 is a prime.

It is a super-2 number, since 2×33668253² = 2267102520144018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33668233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3048 + ... + 8753.

It is an arithmetic number, because the mean of its divisors is an integer number (4065789).

Almost surely, 2^33668253 is an apocalyptic number.

It is an amenable number.

33668253 is a deficient number, since it is larger than the sum of its proper divisors (15121215).

33668253 is a wasteful number, since it uses less digits than its factorization.

33668253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124 (or 12121 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 33668253 is about 5802.4350922695. The cubic root of 33668253 is about 322.9040761589.

The spelling of 33668253 in words is "thirty-three million, six hundred sixty-eight thousand, two hundred fifty-three".