25534533 has 4 divisors (see below), whose sum is σ = 34046048. Its totient is φ = 17023020.

The previous prime is 25534519. The next prime is 25534541. The reversal of 25534533 is 33543552.

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 25534533 - 2⁵ = 25534501 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 25534533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25534543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4255753 + ... + 4255758.

It is an arithmetic number, because the mean of its divisors is an integer number (8511512).

Almost surely, 2^25534533 is an apocalyptic number.

It is an amenable number.

25534533 is a deficient number, since it is larger than the sum of its proper divisors (8511515).

25534533 is an equidigital number, since it uses as much as digits as its factorization.

25534533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511514.

The product of its digits is 27000, while the sum is 30.

The square root of 25534533 is about 5053.1705888482. The cubic root of 25534533 is about 294.4710736672.

The spelling of 25534533 in words is "twenty-five million, five hundred thirty-four thousand, five hundred thirty-three".