33530453225 has 24 divisors (see below), whose sum is σ = 43171623000. Its totient is φ = 25802954240.

The previous prime is 33530453191. The next prime is 33530453227. The reversal of 33530453225 is 52235403533.

It can be written as a sum of positive squares in 12 ways, for example, as 25813884889 + 7716568336 = 160667^2 + 87844^2 .

It is not a de Polignac number, because 33530453225 - 2²² = 33526258921 is a prime.

It is a super-2 number, since 2×33530453225² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33530453227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109061 + ... + 280989.

It is an arithmetic number, because the mean of its divisors is an integer number (1798817625).

Almost surely, 2^33530453225 is an apocalyptic number.

It is an amenable number.

33530453225 is a deficient number, since it is larger than the sum of its proper divisors (9641169775).

33530453225 is a wasteful number, since it uses less digits than its factorization.

33530453225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172237 (or 172232 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 35.

Adding to 33530453225 its reverse (52235403533), we get a palindrome (85765856758).

The spelling of 33530453225 in words is "thirty-three billion, five hundred thirty million, four hundred fifty-three thousand, two hundred twenty-five".