25243533 has 24 divisors (see below), whose sum is σ = 43867200. Its totient is φ = 13665024.

The previous prime is 25243531. The next prime is 25243541. The reversal of 25243533 is 33534252.

It is not a de Polignac number, because 25243533 - 2¹ = 25243531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25243497 and 25243506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25243531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9348 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (1827800).

Almost surely, 2^25243533 is an apocalyptic number.

It is an amenable number.

25243533 is a deficient number, since it is larger than the sum of its proper divisors (18623667).

25243533 is a wasteful number, since it uses less digits than its factorization.

25243533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121 (or 21118 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 25243533 is about 5024.2942788018. The cubic root of 25243533 is about 293.3481671504.

Adding to 25243533 its reverse (33534252), we get a palindrome (58777785).

The spelling of 25243533 in words is "twenty-five million, two hundred forty-three thousand, five hundred thirty-three".