25322450421 has 8 divisors (see below), whose sum is σ = 33949805344. Its totient is φ = 16788364560.

The previous prime is 25322450341. The next prime is 25322450423. The reversal of 25322450421 is 12405422352.

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

It is not a de Polignac number, because 25322450421 - 2¹¹ = 25322448373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25322450423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23316631 + ... + 23317716.

It is an arithmetic number, because the mean of its divisors is an integer number (4243725668).

Almost surely, 2^25322450421 is an apocalyptic number.

It is an amenable number.

25322450421 is a deficient number, since it is larger than the sum of its proper divisors (8627354923).

25322450421 is a wasteful number, since it uses less digits than its factorization.

25322450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46634531.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 25322450421 its reverse (12405422352), we get a palindrome (37727872773).

The spelling of 25322450421 in words is "twenty-five billion, three hundred twenty-two million, four hundred fifty thousand, four hundred twenty-one".