33052042251 has 8 divisors (see below), whose sum is σ = 48965988560. Its totient is φ = 22034694816.

The previous prime is 33052042223. The next prime is 33052042259. The reversal of 33052042251 is 15224025033.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-33052042251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1224149713 = 33052042251 / (3 + 3 + 0 + 5 + 2 + 0 + 4 + 2 + 2 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33052042259) 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, 612074830 + ... + 612074883.

It is an arithmetic number, because the mean of its divisors is an integer number (6120748570).

Almost surely, 2^33052042251 is an apocalyptic number.

33052042251 is a deficient number, since it is larger than the sum of its proper divisors (15913946309).

33052042251 is a wasteful number, since it uses less digits than its factorization.

33052042251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224149722 (or 1224149716 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 33052042251 its reverse (15224025033), we get a palindrome (48276067284).

The spelling of 33052042251 in words is "thirty-three billion, fifty-two million, forty-two thousand, two hundred fifty-one".