25520233 has 8 divisors (see below), whose sum is σ = 25997760. Its totient is φ = 25045680.

The previous prime is 25520221. The next prime is 25520267. The reversal of 25520233 is 33202552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25520233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25520293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23523 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (3249720).

Almost surely, 2^25520233 is an apocalyptic number.

It is an amenable number.

25520233 is a deficient number, since it is larger than the sum of its proper divisors (477527).

25520233 is a wasteful number, since it uses less digits than its factorization.

25520233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 25520233 is about 5051.7554374692. The cubic root of 25520233 is about 294.4160929257.

Adding to 25520233 its reverse (33202552), we get a palindrome (58722785).

The spelling of 25520233 in words is "twenty-five million, five hundred twenty thousand, two hundred thirty-three".