25372533 has 4 divisors (see below), whose sum is σ = 33830048. Its totient is φ = 16915020.

The previous prime is 25372499. The next prime is 25372547. The reversal of 25372533 is 33527352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25372533 - 2¹⁰ = 25371509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25372533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25372553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4228753 + ... + 4228758.

It is an arithmetic number, because the mean of its divisors is an integer number (8457512).

Almost surely, 2^25372533 is an apocalyptic number.

It is an amenable number.

25372533 is a deficient number, since it is larger than the sum of its proper divisors (8457515).

25372533 is an equidigital number, since it uses as much as digits as its factorization.

25372533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457514.

The product of its digits is 18900, while the sum is 30.

The square root of 25372533 is about 5037.1155436420. The cubic root of 25372533 is about 293.8470095771.

Adding to 25372533 its reverse (33527352), we get a palindrome (58899885).

The spelling of 25372533 in words is "twenty-five million, three hundred seventy-two thousand, five hundred thirty-three".