2505533033 has 4 divisors (see below), whose sum is σ = 2573250180. Its totient is φ = 2437815888.

The previous prime is 2505533029. The next prime is 2505533053. The reversal of 2505533033 is 3303355052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1033429609 + 1472103424 = 32147^2 + 38368^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505533033 - 2² = 2505533029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2505532987 and 2505533005.

It is not an unprimeable number, because it can be changed into a prime (2505533003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33858518 + ... + 33858591.

It is an arithmetic number, because the mean of its divisors is an integer number (643312545).

Almost surely, 2^2505533033 is an apocalyptic number.

It is an amenable number.

2505533033 is a deficient number, since it is larger than the sum of its proper divisors (67717147).

2505533033 is an equidigital number, since it uses as much as digits as its factorization.

2505533033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67717146.

The product of its (nonzero) digits is 20250, while the sum is 29.

The square root of 2505533033 is about 50055.2997493772. The cubic root of 2505533033 is about 1358.2093346839.

Adding to 2505533033 its reverse (3303355052), we get a palindrome (5808888085).

The spelling of 2505533033 in words is "two billion, five hundred five million, five hundred thirty-three thousand, thirty-three".