25343250505 has 8 divisors (see below), whose sum is σ = 30443226624. Its totient is φ = 20253716400.

The previous prime is 25343250469. The next prime is 25343250523. The reversal of 25343250505 is 50505234352.

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

It is not a de Polignac number, because 25343250505 - 2¹³ = 25343242313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2605161 + ... + 2614870.

It is an arithmetic number, because the mean of its divisors is an integer number (3805403328).

Almost surely, 2^25343250505 is an apocalyptic number.

It is an amenable number.

25343250505 is a deficient number, since it is larger than the sum of its proper divisors (5099976119).

25343250505 is an equidigital number, since it uses as much as digits as its factorization.

25343250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221007.

The product of its (nonzero) digits is 90000, while the sum is 34.

Adding to 25343250505 its reverse (50505234352), we get a palindrome (75848484857).

The spelling of 25343250505 in words is "twenty-five billion, three hundred forty-three million, two hundred fifty thousand, five hundred five".