25061221326 has 8 divisors (see below), whose sum is σ = 50122442664. Its totient is φ = 8353740440.

The previous prime is 25061221307. The next prime is 25061221357. The reversal of 25061221326 is 62312216052.

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

25061221326 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 25061221293 and 25061221302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088435105 + ... + 2088435116.

It is an arithmetic number, because the mean of its divisors is an integer number (6265305333).

Almost surely, 2^25061221326 is an apocalyptic number.

25061221326 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25061221326 is a wasteful number, since it uses less digits than its factorization.

25061221326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176870226.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 25061221326 its reverse (62312216052), we get a palindrome (87373437378).

The spelling of 25061221326 in words is "twenty-five billion, sixty-one million, two hundred twenty-one thousand, three hundred twenty-six".