25435533241 has 4 divisors (see below), whose sum is σ = 25435855872. Its totient is φ = 25435210612.

The previous prime is 25435533223. The next prime is 25435533251. The reversal of 25435533241 is 14233553452.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25435533241 - 2⁹ = 25435532729 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 25435533241.

It is not an unprimeable number, because it can be changed into a prime (25435533251) 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, 44316 + ... + 229858.

It is an arithmetic number, because the mean of its divisors is an integer number (6358963968).

Almost surely, 2^25435533241 is an apocalyptic number.

It is an amenable number.

25435533241 is a deficient number, since it is larger than the sum of its proper divisors (322631).

25435533241 is a wasteful number, since it uses less digits than its factorization.

25435533241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322630.

The product of its digits is 216000, while the sum is 37.

The spelling of 25435533241 in words is "twenty-five billion, four hundred thirty-five million, five hundred thirty-three thousand, two hundred forty-one".